Form: SC 13G

Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

January 18, 2006

SC 13G: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

Published on January 18, 2006

SCHEDULE 13G
CUSIP NO. 290846104 PAGE 1 OF 10 PAGES


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. _____)*

EMCORE Corporation
(Name of Issuer)

Common Stock, no par value
(Title of Class of Securities)

290846104
(CUSIP Number)

December 31, 2005
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

[ ] Rule 13d-1(b)

[X] Rule 13d-1(c)

[ ] Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).


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SCHEDULE 13G
CUSIP NO. 290846104 PAGE 2 OF 10 PAGES


- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Alexandra Global Master Fund Ltd.
(No I.R.S. ID Number)

- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A)[ ]

(B)[ ] (See Item 6)

- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION

British Virgin Islands
- --------------------------------------------------------------------------------

NUMBER OF 5 SOLE VOTING POWER
SHARES
BENEFICIALLY -0-
OWNED BY -----------------------------------------------------------------
EACH 6 SHARED VOTING POWER
REPORTING
PERSON 3,222,503 shares of Common Stock (See Item 4)
WITH: -----------------------------------------------------------------
7 SOLE DISPOSITIVE POWER

-0-
-----------------------------------------------------------------
8 SHARED DISPOSITIVE POWER

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES (SEE INSTRUCTIONS) [ ]

- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.3% (See Item 4)

- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

CO
- --------------------------------------------------------------------------------


-2-


SCHEDULE 13G
CUSIP NO. 290846104 PAGE 3 OF 10 PAGES


- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Alexandra Investment Management, LLC
13-4092583

- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A)[ ]

(B)[ ] (See Item 6)

- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware
- --------------------------------------------------------------------------------

NUMBER OF 5 SOLE VOTING POWER
SHARES
BENEFICIALLY -0-
OWNED BY -----------------------------------------------------------------
EACH 6 SHARED VOTING POWER
REPORTING
PERSON 3,222,503 shares of Common Stock (See Item 4)
WITH: -----------------------------------------------------------------
7 SOLE DISPOSITIVE POWER

-0-
-----------------------------------------------------------------
8 SHARED DISPOSITIVE POWER

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES (SEE INSTRUCTIONS) [ ]

- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.3% (See Item 4)

- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO
- --------------------------------------------------------------------------------


-3-


SCHEDULE 13G
CUSIP NO. 290846104 PAGE 4 OF 10 PAGES


- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Mikhail A. Filimonov

- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A)[ ]

(B)[ ] (See Item 6)

- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION

U.S.

- --------------------------------------------------------------------------------

NUMBER OF 5 SOLE VOTING POWER
SHARES
BENEFICIALLY -0-
OWNED BY -----------------------------------------------------------------
EACH 6 SHARED VOTING POWER
REPORTING
PERSON 3,222,503 shares of Common Stock (See Item 4)
WITH: -----------------------------------------------------------------
7 SOLE DISPOSITIVE POWER

-0-
-----------------------------------------------------------------
8 SHARED DISPOSITIVE POWER

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES (SEE INSTRUCTIONS) [ ]

- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.3% (See Item 4)

- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

IN
- --------------------------------------------------------------------------------


-4-


SCHEDULE 13G
CUSIP NO. 290846104 PAGE 5 OF 10 PAGES


- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Dimitri Sogoloff

- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A)[ ]

(B)[ ] (See Item 6)

- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION

U.S.

- --------------------------------------------------------------------------------

NUMBER OF 5 SOLE VOTING POWER
SHARES
BENEFICIALLY -0-
OWNED BY -----------------------------------------------------------------
EACH 6 SHARED VOTING POWER
REPORTING
PERSON 3,222,503 shares of Common Stock (See Item 4)
WITH: -----------------------------------------------------------------
7 SOLE DISPOSITIVE POWER

-0-
-----------------------------------------------------------------
8 SHARED DISPOSITIVE POWER

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,222,503 shares of Common Stock (See Item 4)

- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES (SEE INSTRUCTIONS) [ ]

- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.3% (See Item 4)

- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

IN
- --------------------------------------------------------------------------------


-5-

SCHEDULE 13G
CUSIP NO. 290846104 PAGE 6 OF 10 PAGES


Item 1(a). Name of Issuer:

EMCORE Corporation, a New Jersey corporation (the "Issuer")

Item 1(b). Address of Issuer's Principal Executive Offices:

145 Belmont Drive
Somerset, New Jersey 08873

Item 2(a). Names of Persons Filing:

Alexandra Global Master Fund Ltd. ("Alexandra")
Alexandra Investment Management, LLC ("Management")
Mikhail A. Filimonov ("Filimonov")
Dimitri Sogoloff ("Sogoloff")

Item 2(b). Address of Principal Business Office:

Alexandra - Citco Building, Wickams Cay, P.O. Box 662,
Road Town, Tortola, British Virgin Islands
Management - 767 Third Avenue, 39th Floor, New York,
New York 10017
Filimonov - 767 Third Avenue, 39th Floor, New York,
New York 10017
Sogoloff - 767 Third Avenue, 39th Floor, New York,
New York 10017

Item 2(c). Place of Organization or Citizenship:

Alexandra - British Virgin Islands
Management - Delaware
Filimonov - U.S.
Sogoloff - U.S.

Item 2(d). Title of Class of Securities:

Common Stock, no par value per share, of the Issuer (the "Common
Stock")

Item 2(e). CUSIP Number: 290846104

Item 3. This Schedule is filed pursuant to Rule 13d-1(c) by Alexandra,
Management, Filimonov and Sogoloff

Item 4. Ownership:

(a) Amount Beneficially Owned:

Alexandra: 3,222,503 shares*
Management: 3,222,503 shares*
Filimonov: 3,222,503 shares*
Sogoloff: 3,222,503 shares*

(b) Percent of Class:

Alexandra: 6.3%*
Management: 6.3%*
Filimonov: 6.3%*
Sogoloff: 6.3%*

(Based on 48,243,280 shares of Common Stock outstanding, as
of December 2, 2005, as reported by the Issuer in the
Issuer's Annual Report on Form 10-K for the fiscal year ended
September 30, 2005)


-6-


SCHEDULE 13G
CUSIP NO. 290846104 PAGE 7 OF 10 PAGES


(c) Number of Shares as to which the Person has:

(i) sole power to vote or to direct the vote

-0-

(ii) shared power to vote or to direct the vote:

3,222,503 shares of Common Stock*

(iii) sole power to dispose or to direct the disposition of

-0-

(iv) shared power to dispose or to direct the disposition of

3,222,503 shares of Common Stock*

* The shares of Common Stock reported as beneficially owned by Alexandra
include 2,860,479 shares of Common Stock that Alexandra has the right to
acquire upon conversion of $23,055,460 principal amount of Convertible
Senior Subordinated Notes due May 15, 2011 issued by the Issuer (the
"Notes"). The number of shares of Common Stock issuable upon conversion of
the Notes is subject to adjustment as provided in such Notes.

Management serves as investment advisor to Alexandra. By reason of such
relationship, Management may be deemed to share voting and dispositive power
over the shares of Common Stock owned by Alexandra. Management disclaims
beneficial ownership of the shares of Common Stock listed as beneficially owned
by Alexandra or any other person reporting on this Schedule.

Filimonov serves as the Chairman, the Chief Executive Officer, a Managing Member
and the Chief Investment Officer of Management. Sogoloff serves as the
President, a Managing Member and the Chief Risk Officer of Management. By reason
of such relationships, each of Filimonov and Sogoloff may be deemed to share
voting and dispositive power over the shares of Common Stock listed as
beneficially owned by Management. Filimonov and Sogoloff each disclaims
beneficial ownership of the shares of Common Stock listed as beneficially owned
by Management or any other person reporting on this Schedule.

Item 5. Ownership of Five Percent or Less of a Class:

Not applicable

Item 6. Ownership of More Than Five Percent on Behalf of Another Person:

Not applicable

Item 7. Identification and Classification of the Subsidiary which Acquired
the Security Being Reported on by the Parent Holding Company:

Not applicable

Item 8. Identification and Classification of Members of the Group:

Not applicable


-7-


SCHEDULE 13G
CUSIP NO. 290846104 PAGE 8 OF 10 PAGES


Item 9. Notice of Dissolution of Group:

Not applicable

Item 10. Certification:

By signing below each signatory certifies that, to the best of its knowledge and
belief, the securities referred to above were not acquired and are not held for
the purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.

Exhibits:

Exhibit I: Joint Filing Agreement, dated as of January 17, 2006, by and
among Alexandra, Management, Filimonov and Sogoloff.


-8-


SCHEDULE 13G
CUSIP NO. 290846104 PAGE 9 OF 10 PAGES


SIGNATURE

By signing below each signatory certifies that, to the best of its
knowledge and belief, the securities referred to above were not acquired and are
not held for the purpose of or with the effect of changing or influencing the
control of the issuer of the securities and were not acquired and are not held
in connection with or as a participant in any transaction having that purpose or
effect.

Dated as of January 17, 2006

ALEXANDRA GLOBAL MASTER FUND LTD.

By: ALEXANDRA INVESTMENT MANAGEMENT, LLC,
its Investment Advisor


By: /s/ Mikhail A. Filimonov
-------------------------------------
Mikhail A. Filimonov
Title: Managing Member


ALEXANDRA INVESTMENT MANAGEMENT, LLC


By: /s/ Mikhail A. Filimonov
-------------------------------------
Mikhail A. Filimonov
Title: Managing Member


/s/ Mikhail A. Filimonov
-----------------------------------------
Mikhail A. Filimonov


/s/ Dimitri Sogoloff
-----------------------------------------
Dimitri Sogoloff


-9-