FORM OF UNDERWRITING AGREEMENT

EXHIBIT 1.1


_______________Shares

EMCORE CORPORATION

Common Stock

UNDERWRITING AGREEMENT

March __, 1999

DONALDSON, LUFKIN & JENRETTE
SECURITIES CORPORATION
PRUDENTIAL SECURITIES
NEEDHAM & COMPANY, INC
VOLPE BROWN WHELAN & COMPANY
As representatives of the several Underwriters
named in Schedule I hereto
c/o Donaldson, Lufkin & Jenrette Securities Corporation
277 Park Avenue
New York, New York 10172

Dear Sirs:

EMCORE Corporation, a New Jersey corporation (the "COMPANY"), proposes
to issue and sell to the several underwriters named in Schedule I hereto (the
"UNDERWRITERS"), and certain stockholders of the Company named in Schedule II
hereto (the "SELLING STOCKHOLDERS") severally propose to sell to the several
Underwriters, an aggregate of _______________ shares of the common stock, no
par value per share, of the Company (the "FIRM Shares"), of which _____________
shares are to be issued and sold by the Company and _____________ shares are to
be sold by the Selling Stockholders, each Selling Stockholder selling the
amount set forth opposite such Selling Stockholder's name in Schedule II
hereto. The Company also proposes to issue and sell to the several Underwriters
not more than an additional _______ shares of its common stock, no par value
per share (the "ADDITIONAL SHARES"), if requested by the Underwriters as
provided in Section 2 hereof. The Firm Shares and the Additional Shares are
hereinafter referred to collectively as the "SHARES". The shares of common
stock of the Company to be outstanding after giving effect to the sales
contemplated hereby are hereinafter referred to as the "COMMON STOCK". The
Company and the Selling Stockholders are hereinafter sometimes referred to
collectively as the "SELLERS."






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SECTION 1. REGISTRATION STATEMENT AND PROSPECTUS. The Company has
prepared and filed with the Securities and Exchange Commission (the
"COMMISSION") in accordance with the provisions of the Securities Act of 1933,
as amended, and the rules and regulations of the Commission thereunder
(collectively, the "ACT"), a registration statement on Form S-3, including a
prospectus, relating to the Shares. The registration statement, as amended at
the time it became effective, including the information (if any) deemed to be
part of the registration statement at the time of effectiveness pursuant to
Rule 430A under the Act and including all documents incorporated by reference
in such registration statement, is hereinafter referred to as the "REGISTRATION
STATEMENT"; and the prospectus in the form first used to confirm sales of
Shares, including all documents incorporated by reference therein, is
hereinafter referred to as the "PROSPECTUS". If the Company has filed or is
required pursuant to the terms hereof to file a registration statement pursuant
to Rule 462(b) under the Act registering additional shares of Common Stock (a
"RULE 462(B) REGISTRATION STATEMENT"), then, unless otherwise specified, any
reference herein to the term "Registration Statement" shall be deemed to
include such Rule 462(b) Registration Statement. The terms "SUPPLEMENT" and
"AMENDMENT" or "AMEND" as used in this Agreement with respect to the
Registration Statement or the Prospectus shall include all documents
subsequently filed by the Company with the Commission pursuant to the
Securities Exchange Act of 1934, as amended, and the rules and regulations of
the Commission thereunder (collectively, the "EXCHANGE ACT") that are deemed to
be incorporated by reference in the Prospectus.

SECTION 2. AGREEMENTS TO SELL AND PURCHASE AND LOCK-UP AGREEMENTS . On
the basis of the representations and warranties contained in this Agreement,
and subject to its terms and conditions, (i) the Company agrees to issue and
sell ______________ Firm Shares, (ii) each Selling Stockholder agrees,
severally and not jointly, to sell the number of Firm Shares set forth opposite
such Selling Stockholder's name in Schedule II hereto and (iii) each
Underwriter agrees, severally and not jointly, to purchase from each Seller at
a price per Share of $______ (the "PURCHASE PRICE") the number of Firm Shares
(subject to such adjustments to eliminate fractional shares as you may
determine) that bears the same proportion to the total number of Firm Shares to
be sold by such Seller as the number of Firm Shares set forth opposite the name
of such Underwriter in Schedule I hereto bears to the total number of Firm
Shares.

On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, the Company agrees to issue
and sell the Additional Shares and the Underwriters shall have the right to
purchase, severally and not jointly, up to _______ Additional Shares from the
Company at the Purchase Price. Additional Shares may be purchased solely for
the purpose of covering over-allotments made in connection with the offering of
the Firm Shares. The Underwriters may exercise their right to purchase
Additional Shares in whole or in part from time to time by giving written
notice thereof to the Company within 30 days after the date of this Agreement.






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You shall give any such notice on behalf of the Underwriters and such notice
shall specify the aggregate number of Additional Shares to be purchased
pursuant to such exercise and the date for payment and delivery thereof, which
date shall be a business day (i) no earlier than two business days after such
notice has been given (and, in any event, no earlier than the Closing Date (as
hereinafter defined)) and (ii) no later than ten business days after such
notice has been given. If any Additional Shares are to be purchased, each
Underwriter, severally and not jointly, agrees to purchase from the Company the
number of Additional Shares (subject to such adjustments to eliminate
fractional shares as you may determine) which bears the same proportion to the
total number of Additional Shares to be purchased from the Company as the
number of Firm Shares set forth opposite the name of such Underwriter in
Schedule I bears to the total number of Firm Shares.

Each Seller hereby agrees not to (i) offer, pledge, sell, contract to
sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase, or otherwise transfer
or dispose of, directly or indirectly, any shares of Common Stock or any
securities convertible into or exercisable or exchangeable for Common Stock
(including, without limitation, shares of Common Stock or securities
convertible into or exercisable or exchangeable for Common Stock which may be
deemed to be beneficially owned by the undersigned in accordance with the rules
and regulations of the Securities and Exchange Commission) or (ii) enter into
any swap or other arrangement that transfers all or a portion of the economic
consequences associated with the ownership of any Common Stock (regardless of
whether any of the transactions described in clause (i) or (ii) is to be
settled by the delivery of Common Stock, or such other securities, in cash or
otherwise), except to the Underwriters pursuant to this Agreement, for a period
of 90 days after the date of the Prospectus without the prior written consent
of Donaldson, Lufkin & Jenrette Securities Corporation. Notwithstanding the
foregoing, during such period (i) the Company may grant stock options pursuant
to the Company's existing stock option plan and (ii) the Company may issue
shares of Common Stock upon the exercise of an option or warrant or the
conversion of a security outstanding on the date hereof. The Company also
agrees not to file any registration statement with respect to any shares of
Common Stock or any securities convertible into or exercisable or exchangeable
for Common Stock for a period of 90 days after the date of the Prospectus
without the prior written consent of Donaldson, Lufkin & Jenrette Securities
Corporation. In addition, each Selling Stockholder agrees that, for a period of
90 days after the date of the Prospectus without the prior written consent of
Donaldson, Lufkin & Jenrette Securities Corporation, it will not make any
demand for, or exercise any right with respect to, the registration of any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock. The Company shall, prior to or concurrently with
the execution of this Agreement, deliver an agreement executed by (i) each






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Selling Stockholder, (ii) each of the directors and officers of the Company who
is not a Selling Stockholder and (iii) each stockholder listed on Annex I
hereto to the effect that such person will not, during the period commencing on
the date such person signs such agreement and ending 90 days after the date of
the Prospectus, without the prior written consent of Donaldson, Lufkin &
Jenrette Corporation, (A) engage in any of the transactions described in the
first sentence of this paragraph or (B) make any demand for, or exercise any
right with respect to, the registration of any shares of Common Stock or any
securities convertible into or exercisable or exchangeable for Common Stock.

SECTION 3. TERMS OF PUBLIC OFFERING. The Sellers are advised by you
that the Underwriters propose (i) to make a public offering of their respective
portions of the Shares as soon after the execution and delivery of this
Agreement as in your judgment is advisable and (ii) initially to offer the
Shares upon the terms set forth in the Prospectus.

SECTION 4. DELIVERY AND PAYMENT. The Shares shall be represented by
definitive certificates and shall be issued in such authorized denominations
and registered in such names as Donaldson, Lufkin & Jenrette Securities
Corporation shall request no later than two business days prior to the Closing
Date or the applicable Option Closing Date (as defined below), as the case may
be. The Shares shall be delivered by or on behalf of the Sellers, with any
transfer taxes thereon duly paid by the respective Sellers, to Donaldson,
Lufkin & Jenrette Securities Corporation through the facilities of The
Depository Trust Company ("DTC"), for the respective accounts of the several
Underwriters, against payment to the Sellers of the Purchase Price therefore by
wire transfer of Federal or other funds immediately available in New York City.
The certificates representing the Shares shall be made available for inspection
not later than 9:30 A.M., New York City time, on the business day prior to the
Closing Date or the applicable Option Closing Date, as the case may be, at the
office of DTC or its designated custodian (the "DESIGNATED OFFICE"). The time
and date of delivery and payment for the Firm Shares shall be 9:00 A.M., New
York City time, on ________, 199_ or such other time on the same or such other
date as Donaldson, Lufkin & Jenrette Securities Corporation and the Company
shall agree in writing. The time and date of delivery and payment for the Firm
Shares are hereinafter referred to as the "CLOSING DATE". The time and date of
delivery and payment for any Additional Shares to be purchased by the
Underwriters shall be 9:00 A.M., New York City time, on the date specified in
the applicable exercise notice given by you pursuant to Section 2 or such other
time on the same or such other date as Donaldson, Lufkin & Jenrette Securities
Corporation and the Company shall agree in writing. The time and date of
delivery and payment for any Additional Shares are hereinafter referred to as
the "OPTION CLOSING DATE".

The documents to be delivered on the Closing Date or any Option
Closing Date on behalf of the parties hereto pursuant to Section 9 of this
Agreement shall be delivered at the offices of Brobeck, Phleger & Harrison LLP,
1633 Broadway, 47th Floor, New York, New York, 10019, and the Shares shall be
delivered at the Designated Office, all on the Closing Date or such Option
Closing Date, as the case may be.






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SECTION 5. AGREEMENTS OF THE COMPANY. The Company agrees with you:

(a) To advise you promptly and, if requested by you, to confirm such
advice in writing, (i) of any request by the Commission for amendments to the
Registration Statement or amendments or supplements to the Prospectus or for
additional information, (ii) of the issuance by the Commission of any stop
order suspending the effectiveness of the Registration Statement or of the
suspension of qualification of the Shares for offering or sale in any
jurisdiction, or the initiation of any proceeding for such purposes, (iii) when
any amendment to the Registration Statement becomes effective, (iv) if the
Company is required to file a Rule 462(b) Registration Statement after the
effectiveness of this Agreement, when the Rule 462(b) Registration Statement
has become effective and (v) of the happening of any event during the period
referred to in Section 5(d) below which makes any statement of a material fact
made in the Registration Statement or the Prospectus untrue or which requires
any additions to or changes in the Registration Statement or the Prospectus in
order to make the statements therein not misleading. If at any time the
Commission shall issue any stop order suspending the effectiveness of the
Registration Statement, the Company will use its best efforts to obtain the
withdrawal or lifting of such order at the earliest possible time.

(b) To furnish you five (5) signed copies of the Registration
Statement as first filed with the Commission and of each amendment to it,
including all exhibits and documents incorporated therein by reference, and to
furnish to you and each Underwriter designated by you such number of conformed
copies of the Registration Statement as so filed and of each amendment to it,
without exhibits but including documents incorporated therein by reference, as
you may reasonably request.

(c) To prepare the Prospectus, the form and substance of which shall
be satisfactory to you, and to file the Prospectus in such form with the
Commission within the applicable period specified in Rule 424(b) under the Act;
during the period specified in Section 5(d) below, not to file any further
amendment to the Registration Statement and not to make any amendment or
supplement to the Prospectus of which you shall not previously have been
advised or to which you shall reasonably object after being so advised; and,
during such period, to prepare and file with the Commission, promptly upon your
reasonable request, any amendment to the Registration Statement or amendment or
supplement to the Prospectus which may be necessary or advisable in connection
with the distribution of the Shares by you, and to use its best efforts to
cause any such amendment to the Registration Statement to become promptly
effective.






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(d) Prior to 10:00 A.M., New York City time, on the first business
day after the date of this Agreement and from time to time thereafter for such
period as in the opinion of counsel for the Underwriters a prospectus is
required by law to be delivered in connection with sales by an Underwriter or a
dealer, to furnish in New York City to each Underwriter and any dealer as many
copies of the Prospectus (and of any amendment or supplement to the Prospectus)
and any documents incorporated therein by reference as such Underwriter or
dealer may reasonably request.

(e) If during the period specified in Section 5(d), any event shall
occur or condition shall exist as a result of which, in the opinion of counsel
for the Underwriters, it becomes necessary to amend or supplement the
Prospectus in order to make the statements therein, in the light of the
circumstances when the Prospectus is delivered to a purchaser, not misleading,
or if, in the opinion of counsel for the Underwriters, it is necessary to amend
or supplement the Prospectus to comply with applicable law, forthwith to
prepare and file with the Commission an appropriate amendment or supplement to
the Prospectus so that the statements in the Prospectus, as so amended or
supplemented, will not in the light of the circumstances when it is so
delivered, be misleading, or so that the Prospectus will comply with applicable
law, and to furnish to each Underwriter and to any dealer as many copies
thereof as such Underwriter or dealer may reasonably request.

(f) Prior to any public offering of the Shares, to cooperate with you
and counsel for the Underwriters in connection with the registration or
qualification of the Shares for offer and sale by the several Underwriters and
by dealers under the state securities or Blue Sky laws of such jurisdictions as
you may request, to continue such registration or qualification in effect so
long as required for distribution of the Shares and to file such consents to
service of process or other documents as may be necessary in order to effect
such registration or qualification; PROVIDED, HOWEVER, that the Company shall
not be required in connection therewith to qualify as a foreign corporation in
any jurisdiction in which it is not now so qualified or to take any action that
would subject it to general consent to service of process or taxation other
than as to matters and transactions relating to the Prospectus, the
Registration Statement, any preliminary prospectus or the offering or sale of
the Shares, in any jurisdiction in which it is not now so subject.

(g) To mail and make generally available to its stockholders as soon
as practicable an earnings statement covering the twelve-month period ending
March 31, 2000 that shall satisfy the provisions of Section 11(a) of the Act,
and to advise you in writing when such statement has been so made available.






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(h) During the period of three years after the date of this
Agreement, to furnish to you as soon as available copies of all reports or
other communications furnished to the record holders of Common Stock or
furnished to or filed with the Commission or any national securities exchange
on which any class of securities of the Company is listed and such other
publicly available information concerning the Company and its subsidiaries as
you may reasonably request.

(i) Whether or not the transactions contemplated in this Agreement
are consummated or this Agreement is terminated, to pay or cause to be paid all
expenses incident to the performance of the Sellers' obligations under this
Agreement, including: (i) the fees, disbursements and expenses of the Company's
counsel, the Company's accountants and any Selling Stockholder's counsel (in
addition to the Company's counsel) in connection with the registration and
delivery of the Shares under the Act and all other fees and expenses in
connection with the preparation, printing, filing and distribution of the
Registration Statement (including financial statements and exhibits), any
preliminary prospectus, the Prospectus and all amendments and supplements to
any of the foregoing, including the mailing and delivering of copies thereof to
the Underwriters and dealers in the quantities specified herein, (ii) all costs
and expenses related to the transfer and delivery of the Shares to the
Underwriters, including any transfer or other taxes payable thereon, (iii) all
costs of printing or producing this Agreement and any other agreements or
documents in connection with the offering, purchase, sale or delivery of the
Shares, (iv) all expenses in connection with the registration or qualification
of the Shares for offer and sale under the securities or Blue Sky laws of the
several states and all costs of printing or producing any Preliminary and
Supplemental Blue Sky Memoranda in connection therewith (including the filing
fees and fees and disbursements of counsel for the Underwriters in connection
with such registration or qualification and memoranda relating thereto), (v)
the filing fees and disbursements of counsel for the Underwriters in connection
with the review and clearance of the offering of the Shares by the National
Association of Securities Dealers, Inc., (vi) all fees and expenses in
connection with the preparation and filing of the registration statement on
Form 8-A relating to the Common Stock and all costs and expenses incident to
the listing of the Shares on the Nasdaq National Market, (vii) the cost of
printing certificates representing the Shares, (viii) the costs and charges of
any transfer agent, registrar and/or depositary, and (ix) all other costs and
expenses incident to the performance of the obligations of the Company and the
Selling Stockholders hereunder for which provision is not otherwise made in
this Section. The provisions of this Section shall not supersede or otherwise
affect any agreement that the Company and the Selling Stockholders may
otherwise have for allocation of such expenses among themselves.

(j) To use its best efforts to list for quotation the Shares on the
Nasdaq National Market and to maintain the listing of the Shares on the Nasdaq
National Market for a period of three years after the date of this Agreement.






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(k) To use its best efforts to do and perform all things required or
necessary to be done and performed under this Agreement by the Company prior to
the Closing Date or any Option Closing Date, as the case may be, and to satisfy
all conditions precedent to the delivery of the Shares.

(l) If the Registration Statement at the time of the effectiveness of
this Agreement does not cover all of the Shares, to file a Rule 462(b)
Registration Statement with the Commission registering the Shares not so
covered in compliance with Rule 462(b) by 10:00 P.M., New York City time, on
the date of this Agreement and to pay to the Commission the filing fee for such
Rule 462(b) Registration Statement at the time of the filing thereof or to give
irrevocable instructions for the payment of such fee pursuant to Rule 111(b)
under the Act.

SECTION 6. REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
represents and warrants to each Underwriter that:

(a) The Registration Statement has become effective (other than any
Rule 462(b) Registration Statement to be filed by the Company after the
effectiveness of this Agreement); any Rule 462(b) Registration Statement filed
after the effectiveness of this Agreement will become effective no later than
10:00 P.M., New York City time, on the date of this Agreement; and no stop
order suspending the effectiveness of the Registration Statement is in effect,
and no proceedings for such purpose are pending before or threatened by the
Commission.

(b) (i) Each document, if any, filed or to be filed pursuant to the
Exchange Act and incorporated by reference in the Prospectus complied or will
comply when so filed in all material respects with the Exchange Act, (ii) the
Registration Statement (other than any Rule 462(b) Registration Statement to be
filed by the Company after the effectiveness of this Agreement), when it became
effective, did not contain and, as amended, if applicable, will not contain any
untrue statement of a material fact or omit to state a material fact required
to be stated therein or necessary to make the statements therein not
misleading, (iii) the Registration Statement (other than any Rule 462(b)
Registration Statement to be filed by the Company after the effectiveness of
this Agreement) and the Prospectus comply and, as amended or supplemented, if
applicable, will comply in all material respects with the Act, (iv) if the
Company is required to file a Rule 462(b) Registration Statement after the
effectiveness of this Agreement, such Rule 462(b) Registration Statement and
any amendments thereto, when they become effective (A) will not contain any





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untrue statement of a material fact or omit to state a material fact required
to be stated therein or necessary to make the statements therein not misleading
and (B) will comply in all material respects with the Act and (v) the
Prospectus does not contain and, as amended or supplemented, if applicable,
will not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, except that the
representations and warranties set forth in this paragraph do not apply to
statements or omissions in the Registration Statement or the Prospectus based
upon information relating to any Underwriter furnished to the Company in
writing by such Underwriter through you expressly for use therein.

(c) Each preliminary prospectus filed as part of the registration
statement as originally filed or as part of any amendment thereto, or filed
pursuant to Rule 424 under the Act, complied when so filed in all material
respects with the Act, and did not contain an untrue statement of a material
fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading, except that the representations and
warranties set forth in this paragraph do not apply to statements or omissions
in any preliminary prospectus based upon information relating to any
Underwriter furnished to the Company in writing by such Underwriter through you
expressly for use therein.

(d) Each of the Company and its subsidiaries has been duly
incorporated, is validly existing as a corporation in good standing under the
laws of its jurisdiction of incorporation and has the corporate power and
authority to carry on its business as described in the Prospectus and to own,
lease and operate its properties, and each is duly qualified and is in good
standing as a foreign corporation authorized to do business in each
jurisdiction in which the nature of its business or its ownership or leasing of
property requires such qualification, except where the failure to be so
qualified would not have a material adverse effect on the business, prospects,
financial condition or results of operations of the Company and its
subsidiaries, taken as a whole.

(e) There are no outstanding subscriptions, rights, warrants,
options, calls, convertible securities, commitments of sale or liens granted or
issued by the Company or any of its subsidiaries relating to or entitling any
person to purchase or otherwise to acquire any shares of the capital stock of
the Company or any of its subsidiaries, except as otherwise disclosed in the
Registration Statement.

(f) All the outstanding shares of capital stock of the Company
(including the Shares to be sold by the Selling Stockholders) have been duly
authorized and validly issued and are fully paid, non-assessable and not
subject to any preemptive or similar rights; and the Shares to be issued and
sold by the Company have been duly authorized and, when issued and delivered to
the Underwriters against payment therefor as provided by this Agreement, will
be validly issued, fully paid and non-assessable, and the issuance of such
Shares will not be subject to any preemptive or similar rights.






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(g) All of the outstanding shares of capital stock of each of the
Company's subsidiaries have been duly authorized and validly issued and are
fully paid and non-assessable, and are owned by the Company, directly or
indirectly through one or more subsidiaries, free and clear of any security
interest, claim, lien, encumbrance or adverse interest of any nature.

(h) The authorized capital stock of the Company conforms as to legal
matters to the description thereof contained in the Prospectus.

(i) Neither the Company nor any of its subsidiaries is in violation
of its respective charter or by-laws or in default in the performance of any
obligation, agreement, covenant or condition contained in any indenture, loan
agreement, mortgage, lease or other agreement or instrument that is material to
the Company and its subsidiaries, taken as a whole, to which the Company or any
of its subsidiaries is a party or by which the Company or any of its
subsidiaries or their respective property is bound.

(j) The execution, delivery and performance of this Agreement by the
Company, the compliance by the Company with all the provisions hereof and the
consummation of the transactions contemplated hereby will not (i) require any
consent, approval, authorization or other order of, or qualification with, any
court or governmental body or agency (except such as may be required under the
securities or Blue Sky laws of the various states), (ii) conflict with or
constitute a breach of any of the terms or provisions of, or a default under,
the charter or by-laws of the Company or any of its subsidiaries or any
indenture, loan agreement, mortgage, lease or other agreement or instrument
that is material to the Company and its subsidiaries, taken as a whole, to
which the Company or any of its subsidiaries is a party or by which the Company
or any of its subsidiaries or their respective property is bound, (iii) violate
or conflict with any applicable law or any rule, regulation, judgment, order or
decree of any court or any governmental body or agency having jurisdiction over
the Company, any of its subsidiaries or their respective property or (iv)
result in the suspension, termination or revocation of any Authorization (as
defined below) of the Company or any of its subsidiaries or any other
impairment of the rights of the holder of any such Authorization.

(k) There are no legal or governmental proceedings pending or
threatened to which the Company or any of its subsidiaries is or could be a
party or to which any of their respective property is or could be subject that
are required to be described in the Registration Statement or the Prospectus
and are not so described; nor are there any statutes, regulations, contracts or
other documents that are required to be described in the Registration Statement
or the Prospectus or to be filed as exhibits to the Registration Statement that
are not so described or filed as required.






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(l) Neither the Company nor any of its subsidiaries has violated any
foreign, federal, state or local law or regulation relating to the protection
of human health and safety, the environment or hazardous or toxic substances or
wastes, pollutants or contaminants ("ENVIRONMENTAL LAWS"), any federal or state
law relating to discrimination in the hiring, promotion or pay of employees,
any applicable federal or state wages and hours laws, any provisions of the
Employee Retirement Income Security Act of 1974, as amended, or any provisions
of the Foreign Corrupt Practices Act or the rules and regulations promulgated
thereunder, except for such violations which, singly or in the aggregate, would
not have a material adverse effect on the business, prospects, financial
condition or results of operation of the Company and its subsidiaries, taken as
a whole.

(m) Each of the Company and its subsidiaries has such permits,
licenses, consents, exemptions, franchises, authorizations and other approvals
(each, an "AUTHORIZATION") of, and has made all filings with and notices to,
all governmental or regulatory authorities and self-regulatory organizations
and all courts and other tribunals, including, without limitation, under any
applicable Environmental Laws, as are necessary to own, lease, license and
operate its respective properties and to conduct its business, except where the
failure to have any such Authorization or to make any such filing or notice
would not, singly or in the aggregate, have a material adverse effect on the
business, prospects, financial condition or results of operations of the
Company and its subsidiaries, taken as a whole. Each such Authorization is
valid and in full force and effect and each of the Company and its subsidiaries
is in compliance with all the terms and conditions thereof and with the rules
and regulations of the authorities and governing bodies having jurisdiction
with respect thereto; and no event has occurred (including, without limitation,
the receipt of any notice from any authority or governing body) which allows
or, after notice or lapse of time or both, would allow, revocation, suspension
or termination of any such Authorization or results or, after notice or lapse
of time or both, would result in any other impairment of the rights of the
holder of any such Authorization; and such Authorizations contain no
restrictions that are burdensome to the Company or any of its subsidiaries;
except where such failure to be valid and in full force and effect or to be in
compliance, the occurrence of any such event or the presence of any such
restriction would not, singly or in the aggregate, have a material adverse
effect on the business, prospects, financial condition or results of operations
of the Company and its subsidiaries, taken as a whole.

(n) In the ordinary course of its business, the Company conducts a
periodic review of the effect of Environmental Laws on the business, operations
and properties of the Company, in the course of which it identifies and
evaluates associated costs and liabilities (including, without limitation, any
capital or operating expenditures required for clean-up, closure of properties
or compliance with Environmental Laws or any permit, license or approval, any





11

related constraints on operating activities and any potential liabilities to
third parties). On the basis of such review, the Company has reasonably
concluded that such associated costs and liabilities would not, singly or in
the aggregate, have a material adverse effect on the business, prospects,
financial condition or results of operations of the Company and its
subsidiaries, taken as a whole.

(o) This Agreement has been duly authorized, executed and delivered
by the Company.

(p) PricewaterhouseCoopers LLP and Arthur Andersen LLP are each
independent public accountants with respect to the Company and its subsidiaries
as required by the Act.

(q) The consolidated financial statements included in the
Registration Statement and the Prospectus (and any amendment or supplement
thereto), together with related schedules and notes, present fairly the
consolidated financial position, results of operations and changes in financial
position of the Company and its subsidiaries on the basis stated therein at the
respective dates or for the respective periods to which they apply; such
statements and related schedules and notes have been prepared in accordance
with generally accepted accounting principles consistently applied throughout
the periods involved, except as disclosed therein; the supporting schedules, if
any, included in the Registration Statement present fairly in accordance with
generally accepted accounting principles the information required to be stated
therein; and the other financial and statistical information and data set forth
in the Registration Statement and the Prospectus (and any amendment or
supplement thereto) are, in all material respects, accurately presented and
prepared on a basis consistent with such financial statements and the books and
records of the Company.

(r) The Company is not and, after giving effect to the offering and
sale of the Shares and the application of the proceeds thereof as described in
the Prospectus, will not be, an "investment company" or a company "controlled"
by an "investment company", as such terms are defined in the Investment Company
Act of 1940, as amended.

(s) Except as otherwise disclosed in the Registration Statement,
there are no contracts, agreements or understandings between the Company and
any person granting such person the right to require the Company to file a
registration statement under the Act with respect to any securities of the
Company or to require the Company to include such securities with the Shares
registered pursuant to the Registration Statement.

(t) Since the respective dates as of which information is given in
the Prospectus other than as set forth in the Prospectus (exclusive of any
amendments or supplements thereto subsequent to the date of this Agreement),
(i) there has not occurred any material adverse change or any development
involving a prospective material adverse change in the condition, financial or





12

otherwise, or the earnings, business, management or operations of the Company
and its subsidiaries, taken as a whole, (ii) there has not been any material
adverse change or any development involving a prospective material adverse
change in the capital stock or in the long-term debt of the Company or any of
its subsidiaries and (iii) neither the Company nor any of its subsidiaries has
incurred any material liability or obligation, direct or contingent.

(u) Each certificate signed by any officer of the Company and
delivered to the Underwriters or counsel for the Underwriters shall be deemed
to be a representation and warranty by the Company to the Underwriters as to
the matters covered thereby.

(w) The Company and its subsidiaries have good and marketable
title in fee simple to all real property and good and marketable title to all
personal property owned by them which is material to the business of the
Company and its subsidiaries, taken as a whole, in each case free and clear of
all liens, encumbrances and defects except such as are described in the
Prospectus or such as do not materially affect the value of such property and
do not interfere with the use made and proposed to be made of such property by
the Company and its subsidiaries; and any real property and buildings held
under lease by the Company and its subsidiaries are held by them under valid,
subsisting and enforceable leases with such exceptions as are not material and
do not interfere with the use made and proposed to be made of such property and
buildings by the Company and its subsidiaries, taken as a whole, in each case
except as described in the Prospectus.

(x) The Company and its subsidiaries own, or possess valid
and enforceable licenses to all patents, patent rights, inventions, copyrights,
know-how (including trade secrets and other unpatented and/or unpatentable
proprietary or confidential information, systems or procedures), trademarks,
service marks and trade names ("INTELLECTUAL PROPERTY") currently employed by
the Company and its subsidiaries in connection with the business now operated
by them , except where the failure to own or possess such Intellectual Property
would not, singly or in the aggregate, have a material adverse effect on the
business, prospects, financial condition or results of operation of the Company
and its subsidiaries, taken as a whole. Neither the Company, nor its
subsidiaries, has received any notice, nor are they aware of facts which would
form a reasonable basis for any such claim, that: (i) challenges the Company's
or its subsidiaries' rights in or to any Intellectual Property; (ii) challenges
the validity or scope of any Intellectual Property; (iii) any third party has
or will be able to establish any rights in the Intellectual Property, except
for the ownership rights of the owners of the Intellectual Property which is
licensed to the Company or the rights of parties to whom the Company has
granted licenses of such Intellectual Property; (iv) the Intellectual Property





13

infringes or otherwise violates any patent, copyright, trade secret, trademark
or other proprietary right of any third party; or (v) there is infringement of
the Intellectual Property by any third party, which, in the case of any such
claim specified in clauses (i), (ii), (iii), (iv) or (v) above, singly or in
the aggregate, if the subject of an unfavorable decision, ruling or finding,
would have a material adverse effect on the business, prospects, financial
condition or results of operations of the Company and its subsidiaries, taken
as a whole.

(y) The Company and each of its subsidiaries are insured by
insurers of recognized financial responsibility against such losses and risks
and in such amounts as are prudent and customary in the businesses in which
they are engaged; and neither the Company nor any of its subsidiaries (i) has
received notice from any insurer or agent of such insurer that substantial
capital improvements or other material expenditures will have to be made in
order to continue such insurance or (ii) has any reason to believe that it will
not be able to renew its existing insurance coverage as and when such coverage
expires or to obtain similar coverage from similar insurers at a cost that
would not have a material adverse effect on the business, prospects, financial
conditions or results of operations of the Company and its subsidiaries, taken
as a whole.

(z) No relationship, direct or indirect, exists between or
among the Company or any of its subsidiaries on the one hand, and the
directors, officers, shareholders, customers or suppliers of the Company or any
of its subsidiaries on the other hand, which is required by the Act to be
described in the Registration Statement or the Prospectus which is not so
described.

(aa) There is no (i) significant unfair labor practice
complaint, grievance or arbitration proceeding pending or, to the Company's
best knowledge, threatened against the Company or any of its subsidiaries
before the National Labor Relations Board or any state or local labor relations
board, (ii) strike, labor dispute, slowdown or stoppage pending or, to the
Company's best knowledge, threatened against the Company or any of its
subsidiaries or (iii) union representation question existing with respect to
the employees of the Company and its subsidiaries, except for such actions
specified in clause (i), (ii) or (iii) above, which, singly or in the
aggregate, would not have a material adverse effect on the business, prospects,
financial condition or results of operations of the Company and its
subsidiaries, taken as a whole. To the best of the Company's knowledge, no
collective bargaining organizing activities are taking place with respect to
the Company or any of its subsidiaries.

(bb) The Company and each of its subsidiaries maintains a
system of internal accounting controls sufficient to provide reasonable
assurance that (i) transactions are executed in accordance with management's
general or specific authorizations; (ii) transactions are recorded as necessary
to permit preparation of financial statements in conformity with generally
accepted accounting principles and to maintain asset accountability; (iii)
access to assets is permitted only in accordance with management's general or
specific authorization; and (iv) the recorded accountability for assets is
compared with the existing assets at reasonable intervals and appropriate
action is taken with respect to any differences.






14

(cc) All material tax returns required to be filed by the
Company and each of its subsidiaries in any jurisdiction have been filed, other
than those filings being contested in good faith, and all material taxes,
including withholding taxes, penalties and interest, assessments, fees and
other charges due pursuant to such returns or pursuant to any assessment
received by the Company or any of its subsidiaries have been paid, other than
those being contested in good faith and for which adequate reserves have been
provided.

(dd) Any documents which at the date hereof are incorporated by
reference in the Registration Statement, the Prospectus or any amendment or
supplement thereto, or any preliminary prospectus (the "Incorporated
Documents") were filed in a timely manner and, when they were filed (or, if any
amendment with respect to any such document was filed, when such amendment was
filed), conformed with the requirements of the Securities Exchange Act of 1934
(the "Exchange Act") and did not contain an untrue statement of a material fact
or omit to state a material fact required to be stated therein or necessary to
make the statements therein not misleading.

(ee) The Company has not taken and will not take, directly or
indirectly, any action designed to or that might reasonably be expected to
cause or result in stabilization or manipulation of the price of the Common
Stock to facilitate the sale or resale of the Shares.

(ff) The Common Stock is registered pursuant to Section 12(g)
of the Exchange Act and is listed on The Nasdaq National Market, and the
Company has taken no action designed to, or likely to have the effect of,
terminating the registration of the Common Stock under the Exchange Act or
delisting the Common Stock from The Nasdaq National Market, nor has the Company
received any notification that the Commission or the National Association of
Securities Dealers, Inc. ("NASD") is contemplating terminating such
registration or listing.

SECTION 7. REPRESENTATIONS AND WARRANTIES OF THE SELLING STOCKHOLDERS.
. Each Selling Stockholder represents and warrants to each Underwriter that:

(a) Such Selling Stockholder is the lawful owner of the Shares to be
sold by such Selling Stockholder pursuant to this Agreement and has, and on the
Closing Date will have, good and clear title to such Shares, free of all
restrictions on transfer, liens, encumbrances, security interests, equities and
claims whatsoever.






15

(b) The Shares to be sold by such Selling Stockholder have been duly
authorized and are validly issued, fully paid and non-assessable.

(c) Such Selling Stockholder has, and on the Closing Date will have,
full legal right, power and authority, and all authorization and approval
required by law, to enter into this Agreement, the Custody Agreement signed by
such Selling Stockholder and [American Stock Transfer & Trust Company], as
Custodian, relating to the deposit of the Shares to be sold by such Selling
Stockholder (the "CUSTODY AGREEMENT") and the Power of Attorney of such Selling
Stockholder appointing certain individuals as such Selling Stockholder's
attorneys-in-fact (the "ATTORNEYS") to the extent set forth therein, relating
to the transactions contemplated hereby and by the Registration Statement and
the Custody Agreement (the "POWER OF ATTORNEY") and to sell, assign, transfer
and deliver the Shares to be sold by such Selling Stockholder in the manner
provided herein and therein.

(d) This Agreement has been duly authorized, executed and delivered
by or on behalf of such Selling Stockholder.

(e) The Custody Agreement of such Selling Stockholder has been duly
authorized, executed and delivered by such Selling Stockholder and is a valid
and binding agreement of such Selling Stockholder, enforceable in accordance
with its terms.

(f) The Power of Attorney of such Selling Stockholder has been duly
authorized, executed and delivered by such Selling Stockholder and is a valid
and binding instrument of such Selling Stockholder, enforceable in accordance
with its terms, and, pursuant to such Power of Attorney, such Selling
Stockholder has, among other things, authorized the Attorneys, or any one of
them, to execute and deliver on such Selling Stockholder's behalf this
Agreement and any other document that they, or any one of them, may deem
necessary or desirable in connection with the transactions contemplated hereby
and thereby and to deliver the Shares to be sold by such Selling Stockholder
pursuant to this Agreement.

(g) Upon delivery of and payment for the Shares to be sold by such
Selling Stockholder pursuant to this Agreement, good and clear title to such
Shares will pass to the Underwriters, free of all restrictions on transfer,
liens, encumbrances, security interests, equities and claims whatsoever.

(h) The execution, delivery and performance of this Agreement and the
Custody Agreement and Power of Attorney of such Selling Stockholder by or on
behalf of such Selling Stockholder, the compliance by such Selling Stockholder
with all the provisions hereof and thereof and the consummation of the
transactions contemplated hereby and thereby will not (i) require any consent,
approval, authorization or other order of, or qualification with, any court or





16

governmental body or agency (except such as may be required under the
securities or Blue Sky laws of the various states), (ii) conflict with or
constitute a breach of any of the terms or provisions of, or a default under,
the organizational documents of such Selling Stockholder, if such Selling
Stockholder is not an individual, or any indenture, loan agreement, mortgage,
lease or other agreement or instrument to which such Selling Stockholder is a
party or by which such Selling Stockholder or any property of such Selling
Stockholder is bound or (iii) violate or conflict with any applicable law or
any rule, regulation, judgment, order or decree of any court or any
governmental body or agency having jurisdiction over such Selling Stockholder
or any property of such Selling Stockholder.

(i) The information in the Registration Statement under the caption
"Principal and Selling Stockholders" which specifically relates to such Selling
Stockholder does not, and will not on the Closing Date, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading.

(j) At any time during the period described in Section 5(d), if there
is any change in the information referred to in Section 7(i), such Selling
Stockholder will immediately notify you of such change.

(k) Each certificate signed by or on behalf of such Selling
Stockholder and delivered to the Underwriters or counsel for the Underwriters
shall be deemed to be a representation and warranty by such Selling Stockholder
to the Underwriters as to the matters covered thereby.

SECTION 8. INDEMNIFICATION. (a) The Sellers, severally and not
jointly, agree to indemnify and hold harmless each Underwriter, its directors,
its officers and each person, if any, who controls any Underwriter within the
meaning of Section 15 of the Act or Section 20 of the Securities Exchange Act
of 1934, as amended (the "EXCHANGE ACT"), from and against any and all losses,
claims, damages, liabilities and judgments (including, without limitation, any
legal or other expenses incurred in connection with investigating or defending
any matter, including any action, that could give rise to any such losses,
claims, damages, liabilities or judgments) caused by any untrue statement or
alleged untrue statement of a material fact contained in the Registration
Statement (or any amendment thereto), the Prospectus (or any amendment or
supplement thereto) or any preliminary prospectus, or caused by any omission or
alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, except insofar as
such losses, claims, damages, liabilities or judgments are caused by any such
untrue statement or omission or alleged untrue statement or omission based upon
information relating to any Underwriter furnished in writing to the Company by
such Underwriter through you expressly for use therein PROVIDED, HOWEVER, that






17

the foregoing indemnity agreement with respect to any preliminary prospectus
shall not inure to the benefit of any Underwriter who failed to deliver a
Prospectus, as then amended or supplemented, (so long as the Prospectus and any
amendment or supplement thereto was provided by the Company to the several
Underwriters in the requisite quantity and on a timely basis to permit proper
delivery on or prior to the Closing Date) to the person asserting any losses,
claims, damages, liabilities or judgments caused by any untrue statement or
alleged untrue statement of a material fact contained in such preliminary
prospectus, or caused by any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, if such material misstatement or omission or alleged
material misstatement or omission was cured in the Prospectus, as so amended or
supplemented, and such Prospectus was required by law to be delivered at or
prior to the written confirmation of sale to such person. Notwithstanding the
foregoing, the aggregate liability of any Selling Stockholder pursuant to this
Section 8(a) shall be limited to an amount equal to the total proceeds (before
deducting underwriting discounts and commissions and expenses) received by such
Selling Stockholder from the Underwriters for the sale of the Shares sold by
such Selling Stockholder hereunder.

(b) Each Underwriter agrees, severally and not jointly, to indemnify
and hold harmless the Company, its directors, its officers who sign the
Registration Statement, each person, if any, who controls the Company within
the meaning of Section 15 of the Act or Section 20 of the Exchange Act, each
Selling Stockholder and each person, if any, who controls such Selling
Stockholder within the meaning of Section 15 of the Act or Section 20 of the
Exchange Act to the same extent as the foregoing indemnity from the Sellers to
such Underwriter but only with reference to information relating to such
Underwriter furnished in writing to the Company by such Underwriter through you
expressly for use in the Registration Statement (or any amendment thereto), the
Prospectus (or any amendment or supplement thereto) or any preliminary
prospectus.

(c) In case any action shall be commenced involving any person in
respect of which indemnity may be sought pursuant to Section 8(a) or 8(b) (the
"INDEMNIFIED PARTY"), the indemnified party shall promptly notify the person
against whom such indemnity may be sought (the "INDEMNIFYING PARTY") in writing
and the indemnifying party shall assume the defense of such action, including
the employment of counsel reasonably satisfactory to the indemnified party and
the payment of all fees and expenses of such counsel, as incurred (except that
in the case of any action in respect of which indemnity may be sought pursuant
to both Sections 8(a) and 8(b), the Underwriter shall not be required to assume
the defense of such action pursuant to this Section 8(c), but may employ
separate counsel and participate in the defense thereof, but the fees and
expenses of such counsel, except as provided below, shall be at the expense of
such Underwriter). Any indemnified party shall have the right to employ
separate counsel in any such action and participate in the defense thereof, but
the fees and expenses of such counsel shall be at the expense of the
indemnified party unless (i) the employment of such counsel shall have been






18

specifically authorized in writing by the indemnifying party, (ii) the
indemnifying party shall have failed to assume the defense of such action or
employ counsel reasonably satisfactory to the indemnified party or (iii) the
named parties to any such action (including any impleaded parties) include both
the indemnified party and the indemnifying party, and the indemnified party
shall have been advised by such counsel that there may be one or more legal
defenses available to it which are different from or additional to those
available to the indemnifying party (in which case the indemnifying party shall
not have the right to assume the defense of such action on behalf of the
indemnified party). In any such case, the indemnifying party shall not, in
connection with any one action or separate but substantially similar or related
actions in the same jurisdiction arising out of the same general allegations or
circumstances, be liable for (i) the fees and expenses of more than one
separate firm of attorneys (in addition to any local counsel) for all
Underwriters, their officers and directors and all persons, if any, who control
any Underwriter within the meaning of either Section 15 of the Act or Section
20 of the Exchange Act, (ii) the fees and expenses of more than one separate
firm of attorneys (in addition to any local counsel) for the Company, its
directors, its officers who sign the Registration Statement and all persons, if
any, who control the Company within the meaning of either such Section and
(iii) the fees and expenses of more than one separate firm of attorneys (in
addition to any local counsel) for all Selling Stockholders and all persons, if
any, who control any Selling Stockholder within the meaning of either such
Section, and all such fees and expenses shall be reimbursed as they are
incurred. In the case of any such separate firm for the Underwriters, their
officers and directors and such control persons of any Underwriters, such firm
shall be designated in writing by Donaldson, Lufkin & Jenrette Securities
Corporation. In the case of any such separate firm for the Company and such
directors, officers and control persons of the Company, such firm shall be
designated in writing by the Company. In the case of any such separate firm for
the Selling Stockholders and such control persons of any Selling Stockholders,
such firm shall be designated in writing by the Attorneys. The indemnifying
party shall indemnify and hold harmless the indemnified party from and against
any and all losses, claims, damages, liabilities and judgments by reason of any
settlement of any action (i) effected with its written consent or (ii) effected
without its written consent if the settlement is entered into more than twenty
business days after the indemnifying party shall have received a request from
the indemnified party for reimbursement for the fees and expenses of counsel
(in any case where such fees and expenses are at the expense of the
indemnifying party) and, prior to the date of such settlement, the indemnifying
party shall have failed to comply with such reimbursement request. No
indemnifying party shall, without the prior written consent of the indemnified
party, effect any settlement or compromise of, or consent to the entry of
judgment with respect to, any pending or threatened action in respect of which
the indemnified party is or could have been a party and indemnity or
contribution may be or could have been sought hereunder by the indemnified
party, unless such settlement, compromise or judgment (i) includes an
unconditional release of the indemnified party from all liability on claims
that are or could have been the subject matter of such action and (ii) does not
include a statement as to or an admission of fault, culpability or a failure to
act, by or on behalf of the indemnified party.







19

(d) To the extent the indemnification provided for in this Section 8
is unavailable to an indemnified party or insufficient in respect of any
losses, claims, damages, liabilities or judgments referred to therein, then
each indemnifying party, in lieu of indemnifying such indemnified party, shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages, liabilities and judgments (i) in such
proportion as is appropriate to reflect the relative benefits received by the
Sellers on the one hand and the Underwriters on the other hand from the
offering of the Shares or (ii) if the allocation provided by clause 8(d)(i)
above is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause 8(d)(i) above
but also the relative fault of the Sellers on the one hand and the Underwriters
on the other hand in connection with the statements or omissions which resulted
in such losses, claims, damages, liabilities or judgments, as well as any other
relevant equitable considerations. The relative benefits received by the
Sellers on the one hand and the Underwriters on the other hand shall be deemed
to be in the same proportion as the total net proceeds from the offering (after
deducting underwriting discounts and commissions, but before deducting
expenses) received by the Sellers, and the total underwriting discounts and
commissions received by the Underwriters, bear to the total price to the public
of the Shares, in each case as set forth in the table on the cover page of the
Prospectus. The relative fault of the Sellers on the one hand and the
Underwriters on the other hand shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or
the omission or alleged omission to state a material fact relates to
information supplied by the Company or the Selling Stockholders on the one hand
or the Underwriters on the other hand and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission.

The Sellers and the Underwriters agree that it would not be just and
equitable if contribution pursuant to this Section 8(d) were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation which does not take account of
the equitable considerations referred to in the immediately preceding
paragraph. The amount paid or payable by an indemnified party as a result of
the losses, claims, damages, liabilities or judgments referred to in the
immediately preceding paragraph shall be deemed to include, subject to the
limitations set forth above, any legal or other expenses incurred by such
indemnified party in connection with investigating or defending any matter,
including any action, that could have given rise to such losses, claims,
damages, liabilities or judgments. Notwithstanding the provisions of this
Section 8, no Underwriter shall be required to contribute any amount in excess
of the amount by which the total price at which the Shares underwritten by it






20

and distributed to the public were offered to the public exceeds the amount of
any damages which such Underwriter has otherwise been required to pay by reason
of such untrue or alleged untrue statement or omission or alleged omission. No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation. The Underwriters' obligations to
contribute pursuant to this Section 8(d) are several in proportion to the
respective number of Shares purchased by each of the Underwriters hereunder and
not joint.

(e) The remedies provided for in this Section 8 are not exclusive and
shall not limit any rights or remedies which may otherwise be available to any
indemnified party at law or in equity.

(f) Each Selling Stockholder hereby designates EMCORE Corporation,
394 Elizabeth Avenue, Somerset, New Jersey, 08873, as its authorized agent,
upon which process may be served in any action which may be instituted in any
state or federal court in the State of New York by any Underwriter, any
director or officer of any Underwriter or any person controlling any
Underwriter asserting a claim for indemnification or contribution under or
pursuant to this Section 8, and each Selling Stockholder will accept the
jurisdiction of such court in such action, and waives, to the fullest extent
permitted by applicable law, any defense based upon lack of personal
jurisdiction or venue. A copy of any such process shall be sent or given to
such Selling Stockholder, at the address for notices specified in Section 12
hereof.

SECTION 9. CONDITIONS OF UNDERWRITERS' OBLIGATIONS. The several
obligations of the Underwriters to purchase the Firm Shares under this
Agreement are subject to the satisfaction of each of the following conditions:

(a) All the representations and warranties of the Company contained
in this Agreement shall be true and correct on the Closing Date with the same
force and effect as if made on and as of the Closing Date.

(b) If the Company is required to file a Rule 462(b) Registration
Statement after the effectiveness of this Agreement, such Rule 462(b)
Registration Statement shall have become effective by 10:00 P.M., New York City
time, on the date of this Agreement; and no stop order suspending the
effectiveness of the Registration Statement shall have been issued and no
proceedings for that purpose shall have been commenced or shall be pending
before or contemplated by the Commission.






21

(c) You shall have received on the Closing Date a certificate dated
the Closing Date, signed by Reuben F. Richards and Thomas G. Werthan, in their
capacities as the President and Chief Executive Officer and Vice President -
Finance, Chief Financial Officer and Secretary of the Company, confirming the
matters set forth in Sections 6(t), 9(a) and 9(b) and that the Company has
complied with all of the agreements and satisfied all of the conditions herein
contained and required to be complied with or satisfied by the Company on or
prior to the Closing Date.

(d) Since the respective dates as of which information is given in
the Prospectus other than as set forth in the Prospectus (exclusive of any
amendments or supplements thereto subsequent to the date of this Agreement),
(i) there shall not have occurred any change or any development involving a
prospective change in the condition, financial or otherwise, or the earnings,
business, management or operations of the Company and its subsidiaries, taken
as a whole, (ii) there shall not have been any change or any development
involving a prospective change in the capital stock or in the long-term debt of
the Company or any of its subsidiaries and (iii) neither the Company nor any of
its subsidiaries shall have incurred any liability or obligation, direct or
contingent, the effect of which, in any such case described in clause 9(d)(i),
9(d)(ii) or 9(d)(iii), in your judgment, is material and adverse and, in your
judgment, makes it impracticable to market the Shares on the terms and in the
manner contemplated in the Prospectus.

(e) All the representations and warranties of each Selling
Stockholder contained in this Agreement shall be true and correct on the
Closing Date with the same force and effect as if made on and as of the Closing
Date and you shall have received on the Closing Date a certificate dated the
Closing Date from each Selling Stockholder to such effect and to the effect
that such Selling Stockholder has complied with all of the agreements and
satisfied all of the conditions herein contained and required to be complied
with or satisfied by such Selling Stockholder on or prior to the Closing Date.

(f) You shall have received on the Closing Date an opinion
(satisfactory to you and counsel for the Underwriters), dated the Closing Date,
of White & Case LLP, counsel for the Company and the Selling Stockholders, to
the effect that:

(i) each of the Company and its subsidiaries has been duly
incorporated, is validly existing as a corporation in good standing
under the laws of its jurisdiction of incorporation and has the
corporate power and authority to carry on its business as described in
the Prospectus and to own, lease and operate its properties;






22

(ii) each of the Company and its subsidiaries is duly
qualified and is in good standing as a foreign corporation authorized
to do business in each jurisdiction in which the nature of its
business or its ownership or leasing of property requires such
qualification, except where the failure to be so qualified would not
have a material adverse effect on the business, prospects, financial
condition or results of operations of the Company and its
subsidiaries, taken as a whole;

(iii) all the outstanding shares of capital stock of the
Company (including the Shares to be sold by the Selling Stockholders)
have been duly authorized and validly issued and are fully paid,
non-assessable and not subject to any preemptive or similar rights;

(iv) the Shares to be issued and sold by the Company hereunder
have been duly authorized and, when issued and delivered to the
Underwriters against payment therefor as provided by this Agreement,
will be validly issued, fully paid and non-assessable, and the
issuance of such Shares will not be subject to any preemptive or
similar rights;

(v) all of the outstanding shares of capital stock of each of
the Company's subsidiaries have been duly authorized and validly
issued and are fully paid and non-assessable, and are owned by the
Company, directly or indirectly through one or more subsidiaries, free
and clear of any security interest, claim, lien, encumbrance or
adverse interest of any nature;

(vi) this Agreement has been duly authorized, executed and
delivered by the Company and by or on behalf of each Selling
Stockholder;

(vii) the authorized capital stock of the Company conforms as
to legal matters to the description thereof contained in the
Prospectus;

(viii) the Registration Statement has become effective under the
Act, no stop order suspending its effectiveness has been issued and no
proceedings for that purpose are, to the best of such counsel's
knowledge after due inquiry, pending before or contemplated by the
Commission;

(ix) the statements under the captions "Risk Factors - Risks
Related to New Joint Ventures", "--Risks Related to Environmental
Regulation", "--Possible Adverse Effects of Issuances of Preferred
Stock", "--Effect of Certain Anti-Takeover Provisions", and "--Shares
Eligible for Future Sale", "Certain Relationships and Related
Transactions" and "Underwriting" in the Prospectus and Item 15 of Part
II of the Registration Statement, insofar as such statements
constitute a summary of the legal matters, documents or proceedings
referred to therein, fairly present the information called for with
respect to such legal matters, documents and proceedings;






23

(x) neither the Company nor any of its subsidiaries is in
violation of its respective charter or by-laws and, to the best of
such counsel's knowledge after due inquiry, neither the Company nor
any of its subsidiaries is in default in the performance of any
obligation, agreement, covenant or condition contained in any
indenture, loan agreement, mortgage, lease or other agreement or
instrument that is material to the Company and its subsidiaries, taken
as a whole, to which the Company or any of its subsidiaries is a party
or by which the Company or any of its subsidiaries or their respective
property is bound;

(xi) the execution, delivery and performance of this Agreement
by the Company, the compliance by the Company with all the provisions
hereof and the consummation of the transactions contemplated hereby
will not (A) require any consent, approval, authorization or other
order of, or qualification with, any court or governmental body or
agency (except such as may be required under the securities or Blue
Sky laws of the various states), (B) conflict with or constitute a
breach of any of the terms or provisions of, or a default under, the
charter or by-laws of the Company or any of its subsidiaries or any
indenture, loan agreement, mortgage, lease or other agreement or
instrument that is material to the Company and its subsidiaries, taken
as a whole, to which the Company or any of its subsidiaries is a party
or by which the Company or any of its subsidiaries or their respective
property is bound, (C) violate or conflict with any applicable law or
any rule, regulation, judgment, order or decree of any court or any
governmental body or agency having jurisdiction over the Company, any
of its subsidiaries or their respective property or (D) result in the
suspension, termination or revocation of any Authorization of the
Company or any of its subsidiaries or any other impairment of the
rights of the holder of any such Authorization;

(xii) after due inquiry, such counsel does not know of any
legal or governmental proceedings pending or threatened to which the
Company or any of its subsidiaries is or could be a party or to which
any of their respective property is or could be subject that are
required to be described in the Registration Statement or the
Prospectus and are not so described, or of any statutes, regulations,
contracts or other documents that are required to be described in the
Registration Statement or the Prospectus or to be filed as exhibits to
the Registration Statement that are not so described or filed as
required;






24

(xiii) neither the Company nor any of its subsidiaries has
violated any Environmental Law, any provisions of the Employee
Retirement Income Security Act of 1974, as amended, or any provisions
of the Foreign Corrupt Practices Act or the rules and regulations
promulgated thereunder, except for such violations which, singly or in
the aggregate, would not have a material adverse effect on the
business, prospects, financial condition or results of operation of
the Company and its subsidiaries, taken as a whole;

(xiv) each of the Company and its subsidiaries has such
Authorizations of, and has made all filings with and notices to, all
governmental or regulatory authorities and self-regulatory
organizations and all courts and other tribunals, including, without
limitation, under any applicable Environmental Laws, as are necessary
to own, lease, license and operate its respective properties and to
conduct its business, except where the failure to have any such
Authorization or to make any such filing or notice would not, singly
or in the aggregate, have a material adverse effect on the business,
prospects, financial condition or results of operations of the Company
and its subsidiaries, taken as a whole; each such Authorization is
valid and in full force and effect and each of the Company and its
subsidiaries is in compliance with all the terms and conditions
thereof and with the rules and regulations of the authorities and
governing bodies having jurisdiction with respect thereto; and no
event has occurred (including, without limitation, the receipt of any
notice from any authority or governing body) which allows or, after
notice or lapse of time or both, would allow, revocation, suspension
or termination of any such Authorization or results or, after notice
or lapse of time or both, would result in any other impairment of the
rights of the holder of any such Authorization; and such
Authorizations contain no restrictions that are burdensome to the
Company or any of its subsidiaries; except where such failure to be
valid and in full force and effect or to be in compliance, the
occurrence of any such event or the presence of any such restriction
would not, singly or in the aggregate, have a material adverse effect
on the business, prospects, financial condition or results of
operations of the Company and its subsidiaries, taken as a whole;

(xv) the Company is not and, after giving effect to the
offering and sale of the Shares and the application of the proceeds
thereof as described in the Prospectus, will not be, an "investment
company" or a company "controlled" by an "investment company" as such
terms are defined in the Investment Company Act of 1940, as amended;

(xvi) to the best of such counsel's knowledge after due
inquiry, except as otherwise set forth in the Prospectus there are no
contracts, agreements or understandings between the Company and any
person granting such person the right to require the Company to file a
registration statement under the Act with respect to any securities of
the Company or to require the Company to include such securities with
the Shares registered pursuant to the Registration Statement;






25

(xvii) (A) each document, if any, filed pursuant to the Exchange
Act and incorporated by reference in the Prospectus (except for
financial statements and other financial data included therein as to
which no opinion need be expressed) complied when so filed as to form
with the Exchange Act, (B) such counsel has no reason to believe that
at the time the Registration Statement became effective or on the date
of this Agreement, the Registration Statement and the prospectus
included therein (except for the financial statements and other
financial data as to which such counsel need not express any belief)
contained any untrue statement of a material fact or omitted to state
a material fact required to be stated therein or necessary to make the
statements therein not misleading and (C) such counsel has no reason
to believe that the Prospectus, as amended or supplemented, if
applicable (except for the financial statements and other financial
data, as aforesaid) contains any untrue statement of a material fact
or omits to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they
were made, not misleading;

(xviii) each Selling Stockholder is the lawful owner of the
Shares to be sold by such Selling Stockholder pursuant to this
Agreement and has good and clear title to such Shares, free of all
restrictions on transfer, liens, encumbrances, security interests,
equities and claims whatsoever;

(xix) each Selling Stockholder has full legal right, power and
authority, and all authorization and approval required by law, to
enter into this Agreement and the Custody Agreement and the Power of
Attorney of such Selling Stockholder and to sell, assign, transfer and
deliver the Shares to be sold by such Selling Stockholder in the
manner provided herein and therein;

(xx) the Custody Agreement of each Selling Stockholder has
been duly authorized, executed and delivered by such Selling
Stockholder and is a valid and binding agreement of such Selling
Stockholder, enforceable in accordance with its terms;

(xxi) the Power of Attorney of each Selling Stockholder has
been duly authorized, executed and delivered by such Selling
Stockholder and is a valid and binding instrument of such Selling
Stockholder, enforceable in accordance with its terms, and, pursuant
to such Power of Attorney, such Selling Stockholder has, among other





26

things, authorized the Attorneys, or any one of them, to execute and
deliver on such Selling Stockholder's behalf this Agreement and any
other document they, or any one of them, may deem necessary or
desirable in connection with the transactions contemplated hereby and
thereby and to deliver the Shares to be sold by such Selling
Stockholder pursuant to this Agreement;

(xxii) upon delivery of and payment for the Shares to be sold by
each Selling Stockholder pursuant to this Agreement, good and clear
title to such Shares will pass to the Underwriters, free of all
restrictions on transfer, liens, encumbrances, security interests,
equities and claims whatsoever; and

(xxiii) the execution, delivery and performance of this Agreement
and the Custody Agreement and Power of Attorney of each Selling
Stockholder by such Selling Stockholder, the compliance by such
Selling Stockholder with all the provisions hereof and thereof and the
consummation of the transactions contemplated hereby and thereby will
not (A) require any consent, approval, authorization or other order
of, or qualification with, any court or governmental body or agency
(except such as may be required under the securities or Blue Sky laws
of the various states), (B) conflict with or constitute a breach of
any of the terms or provisions of, or a default under, the
organizational documents of such Selling Stockholder, if such Selling
Stockholder is not an individual, or any indenture, loan agreement,
mortgage, lease or other agreement or instrument to which such Selling
Stockholder is a party or by which any property of such Selling
Stockholder is bound or (C) violate or conflict with any applicable
law or any rule, regulation, judgment, order or decree of any court or
any governmental body or agency having jurisdiction over such Selling
Stockholder or any property of such Selling Stockholder.

The opinion of White & Case LLP described in Section 9(f) above shall
be rendered to you at the request of the Company and the Selling Stockholders
and shall so state therein.

(g) You shall have received on the Closing Date an opinion, dated the
Closing Date, of Brobeck, Phleger & Harrison LLP, counsel for the Underwriters,
as to the matters referred to in Sections 9(f)(iv), and 9(f)(vi) (but only with
respect to the Company), 9(f)(ix) (but only with respect to the statements
under the caption "Underwriting") and clauses 9(f)(xvii)(B), 9(f)(xvii)(C) and
9(f)(xvii)(D).

In giving such opinions with respect to the matters covered by Section
9(f)(xvii), [counsel for the Company] may state that their opinion and belief
are based upon their participation in the preparation of the Registration
Statement and Prospectus and any amendment or supplements thereto and documents
incorporated therein by reference and review and discussion of the contents
thereof, but is without independent check or verification except as specified.





27

In giving such opinions with respect to the matters covered by clauses
9(f)(xvii)(B), 9(f)(xvii)(C) and 9(f)(xvii)(D) above, Brobeck, Phleger &
Harrison LLP may state that their opinion and belief are based upon their
participation in the preparation of the Registration Statement and Prospectus
and any amendments or supplements thereto (other than the documents
incorporated therein by reference) and review and discussion of the contents
thereof (including the documents incorporated therein by reference), but are
without independent check or verification except as specified.

(h) You shall have received on the Closing Date an opinion
(satisfactory to you and counsel for the Underwriters), dated the Closing Date,
of Lerner, David, Littenberg, Krumholz & Mentlik, patent counsel for the
Company, to the effect that:

(i) The statements in the Registration Statement and Prospectus (x)
under the caption "Risk Factors-No Assurance of Intellectual Property
Protections", "--Licensed Technology Risks" and "--Rockwell Patent Litigation"
and (y) under the caption "Business--Intellectual Property and Licensing",
insofar as such statements constitute summaries of matters of law are accurate
statements or summaries of the matters set forth therein.

(ii) The Company has clear record title to its United States patents
and patent applications identified in SCHEDULE A to the opinion.

(iii) Such counsel is not aware of any facts which, in its opinion,
would render any of the United States patents owned by the Company
unenforceable or invalid.

(iv) Except as is set forth in SCHEDULE B, such counsel is not aware
of any patents, trademarks, service marks, trade names, mask work rights,
copyrights, trade secrets or other rights of others which are being infringed
by specific, current or proposed products or processes referred to in the
Prospectus; such counsel has no knowledge of any pending or threatened action,
suit, proceeding or claim by others that the Company is infringing any patent,
trademark, service mark, trade name, mask work right, copyright, trade secret
or other right of any third party.

(v) To such counsel's knowledge there are no legal or governmental
proceedings pending relating to the United States patent rights, other than
review by the United States Patent and Trademark Office of pending applications
for patents, including appeal proceedings, and, to such counsel's knowledge, no
such proceedings are threatened by United States governmental authorities or
others.






28

(vi) Except as set forth in SCHEDULE C, such counsel is not aware of
any infringement by third parties of the Company's Intellectual Property nor
any pending or threatened actions, proceedings or claims by the Company that
any third party is infringing the Company's Intellectual Property.

(vii) Such counsel does not know of any contracts or other documents
relating to the Intellectual Property of the Company or United States patents
or patent applications other than those described in the Registration Statement
and the Prospectus or identified on SCHEDULE A.

In addition, such counsel shall state that no facts have come to
the attention of such counsel which would form a basis for the belief that (a)
the Registration Statement or any amendment thereto, or (b) the Prospectus, as
amended or supplemented, contain any untrue statement of a material fact with
respect to the patent position of the Company, or omit to state any material
fact relating to the patent position of the Company, which is necessary to make
the statements contained therein not misleading.

(i) You shall have received, on each of the date hereof and the
Closing Date, a letter dated the date hereof or the Closing Date, as the case
may be, in form and substance satisfactory to you, from PricewaterhouseCoopers
LLP, independent public accountants, containing the information and statements
of the type ordinarily included in accountants' "comfort letters" to
Underwriters with respect to the financial statements and certain financial
information contained in or incorporated by reference into the Registration
Statement and the Prospectus.

(j) The Company shall have delivered to you the agreements specified
in Section 2 hereof which agreements shall be in full force and effect on the
Closing Date.

(k) The Shares shall have been duly listed for quotation on the
Nasdaq National Market.

(l) The Company and the Selling Stockholders shall not have failed on
or prior to the Closing Date to perform or comply with any of the agreements
herein contained and required to be performed or complied with by the Company
or the Selling Stockholders, as the case may be, on or prior to the Closing
Date.

(m) You shall have received on the Closing Date, a certificate of
each Selling Stockholder who is not a U.S. Person (as defined under applicable
U.S. federal tax legislation) to the effect that such Selling Stockholder is
not a U.S. Person, which certificate may be in the form of a properly completed
and executed United States Treasury Department Form W-8 (or other applicable
form or statement specified by Treasury Department regulations in lieu
thereof).






29

The several obligations of the Underwriters to purchase any Additional
Shares hereunder are subject to the delivery to you on the applicable Option
Closing Date of such documents as you may reasonably request with respect to
the good standing of the Company, the due authorization and issuance of such
Additional Shares and other matters related to the issuance of such Additional
Shares.

SECTION 10. EFFECTIVENESS OF AGREEMENT AND TERMINATION. This Agreement
shall become effective upon the execution and delivery of this Agreement by the
parties hereto.

This Agreement may be terminated at any time on or prior to the
Closing Date by you by written notice to the Sellers if any of the following
has occurred: (i) any outbreak or escalation of hostilities or other national
or international calamity or crisis or change in economic conditions or in the
financial markets of the United States or elsewhere that, in your judgment, is
material and adverse and, in your judgment, makes it impracticable to market
the Shares on the terms and in the manner contemplated in the Prospectus, (ii)
the suspension or material limitation of trading in securities or other
instruments on the New York Stock Exchange, the American Stock Exchange, the
Chicago Board of Options Exchange, the Chicago Mercantile Exchange, the Chicago
Board of Trade or the Nasdaq National Market or limitation on prices for
securities or other instruments on any such exchange or the Nasdaq National
Market, (iii) the suspension of trading of any securities of the Company on any
exchange or in the over-the-counter market, (iv) the enactment, publication,
decree or other promulgation of any federal or state statute, regulation, rule
or order of any court or other governmental authority which in your opinion
materially and adversely affects, or will materially and adversely affect, the
business, prospects, financial condition or results of operations of the
Company and its subsidiaries, taken as a whole, (v) the declaration of a
banking moratorium by either federal or New York State authorities or (vi) the
taking of any action by any federal, state or local government or agency in
respect of its monetary or fiscal affairs which in your opinion has a material
adverse effect on the financial markets in the United States.

If on the Closing Date or on an Option Closing Date, as the case may
be, any one or more of the Underwriters shall fail or refuse to purchase the
Firm Shares or Additional Shares, as the case may be, which it has or they have
agreed to purchase hereunder on such date and the aggregate number of Firm
Shares or Additional Shares, as the case may be, which such defaulting
Underwriter or Underwriters agreed but failed or refused to purchase is not
more than one-tenth of the total number of Firm Shares or Additional Shares, as
the case may be, to be purchased on such date by all Underwriters, each
non-defaulting Underwriter shall be obligated severally, in the proportion
which the number of Firm Shares set forth opposite its name in Schedule I bears
to the total number of Firm Shares which all the non-defaulting Underwriters
have agreed to purchase, or in such other proportion as you may specify, to
purchase the Firm Shares or Additional Shares, as the case may be, which such
defaulting Underwriter or Underwriters agreed but failed or refused to purchase
on such date; PROVIDED that in no event shall the number of Firm Shares or





30

Additional Shares, as the case may be, which any Underwriter has agreed to
purchase pursuant to Section 2 hereof be increased pursuant to this Section 10
by an amount in excess of one-ninth of such number of Firm Shares or Additional
Shares, as the case may be, without the written consent of such Underwriter. If
on the Closing Date any Underwriter or Underwriters shall fail or refuse to
purchase Firm Shares and the aggregate number of Firm Shares with respect to
which such default occurs is more than one-tenth of the aggregate number of
Firm Shares to be purchased by all Underwriters and arrangements satisfactory
to you, the Company and the Selling Stockholders for purchase of such Firm
Shares are not made within 48 hours after such default, this Agreement will
terminate without liability on the part of any non-defaulting Underwriter, the
Company or the Selling Stockholders. In any such case which does not result in
termination of this Agreement, either you or the Sellers shall have the right
to postpone the Closing Date, but in no event for longer than seven days, in
order that the required changes, if any, in the Registration Statement and the
Prospectus or any other documents or arrangements may be effected. If, on an
Option Closing Date, any Underwriter or Underwriters shall fail or refuse to
purchase Additional Shares and the aggregate number of Additional Shares with
respect to which such default occurs is more than one-tenth of the aggregate
number of Additional Shares to be purchased on such date, the non-defaulting
Underwriters shall have the option to (i) terminate their obligation hereunder
to purchase such Additional Shares or (ii) purchase not less than the number of
Additional Shares that such non-defaulting Underwriters would have been
obligated to purchase on such date in the absence of such default. Any action
taken under this paragraph shall not relieve any defaulting Underwriter from
liability in respect of any default of any such Underwriter under this
Agreement.

SECTION 11. AGREEMENTS OF THE SELLING STOCKHOLDERS. Each Selling
Stockholder agrees with you and the Company:

(a) To pay or to cause to be paid all transfer taxes payable in
connection with the transfer of the Shares to be sold by such Selling
Stockholder to the Underwriters.

(b) To do and perform all things to be done and performed by such
Selling Stockholder under this Agreement prior to the Closing Date and to
satisfy all conditions precedent to the delivery of the Shares to be sold by
such Selling Stockholder pursuant to this Agreement.

SECTION 12. MISCELLANEOUS. Notices given pursuant to any provision of
this Agreement shall be addressed as follows: (i) if to the Company, to EMCORE
Corporation, 394 Elizabeth Avenue, Somerset, New Jersey, 08873, (ii) if to the
Selling Stockholders, to [American Stock Transfer & Trust Co.] c/o [ADDRESS OF
ATTORNEY-IN-FACT] and (iii) if to any Underwriter or to you, to you c/o
Donaldson, Lufkin & Jenrette Securities Corporation, 277 Park Avenue, New York,
New York 10172, Attention: Syndicate Department, or in any case to such other
address as the person to be notified may have requested in writing.





31

The respective indemnities, contribution agreements, representations,
warranties and other statements of the Company, the Selling Stockholders and
the several Underwriters set forth in or made pursuant to this Agreement shall
remain operative and in full force and effect, and will survive delivery of and
payment for the Shares, regardless of (i) any investigation, or statement as to
the results thereof, made by or on behalf of any Underwriter, the officers or
directors of any Underwriter, any person controlling any Underwriter, the
Company, the officers or directors of the Company, any person controlling the
Company, any Selling Stockholder or any person controlling such Selling
Stockholder, (ii) acceptance of the Shares and payment for them hereunder and
(iii) termination of this Agreement.

If for any reason the Shares are not delivered by or on behalf of any
Seller as provided herein (other than as a result of any termination of this
Agreement pursuant to Section 10), the Sellers agree, jointly and severally, to
reimburse the several Underwriters for all out-of-pocket expenses (including
the fees and disbursements of counsel) incurred by them. Notwithstanding any
termination of this Agreement, the Company shall be liable for all expenses
which it has agreed to pay pursuant to Section 5(i) hereof. The Sellers also
agree, jointly and severally, to reimburse the several Underwriters, their
directors and officers and any persons controlling any of the Underwriters for
any and all fees and expenses (including, without limitation, the fees
disbursements of counsel) incurred by them in connection with enforcing their
rights hereunder (including, without limitation, pursuant to Section 8 hereof).

Except as otherwise provided, this Agreement has been and is made
solely for the benefit of and shall be binding upon the Company, the Selling
Stockholders, the Underwriters, the Underwriters' directors and officers, any
controlling persons referred to herein, the Company's directors and the
Company's officers who sign the Registration Statement and their respective
successors and assigns, all as and to the extent provided in this Agreement,
and no other person shall acquire or have any right under or by virtue of this
Agreement. The term "successors and assigns" shall not include a purchaser of
any of the Shares from any of the several Underwriters merely because of such
purchase.

This Agreement shall be governed and construed in accordance with the
laws of the State of New York.

This Agreement may be signed in various counterparts which together
shall constitute one and the same instrument.




32

Please confirm that the foregoing correctly sets forth the agreement
among the Company, the Selling Stockholders and the several Underwriters.


Very truly yours,

EMCORE CORPORATION



By:
---------------------------------------
Title:



THE SELLING STOCKHOLDERS
NAMED IN SCHEDULE II
HERETO, ACTING
SEVERALLY



By:
---------------------------------------
Attorney-in-fact

DONALDSON, LUFKIN & JENRETTE
SECURITIES CORPORATION
PRUDENTIAL SECURITIES
NEEDHAM & COMPANY, INC.
VOLPE BROWN WHELAN & COMPANY

Acting severally on behalf of
themselves and the several
Underwriters named in
Schedule I hereto

By DONALDSON, LUFKIN & JENRETTE
SECURITIES CORPORATION
----------------------------



By
----------------------------





33

SCHEDULE I


Number of Firm Shares
Underwriters to be Purchased


Donaldson, Lufkin & Jenrette Securities
Corporation

Prudential Securities
Needham & Company, Inc.
Volpe Brown Whelan & Company

Total







34


SCHEDULE II

SELLING STOCKHOLDERS


Number of Firm
Name Shares Being Sold





Total





35



ANNEX I

[Insert names of stockholders of the Company who will
be required to sign lock ups]









36