Form: EFFECT

Notice of Effectiveness

August 15, 2011

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

Notice of Effectiveness

Effectiveness Date: August 15, 2011 5:00 P.M.
Form: S-1
CIK: 0000808326
Company Name: EMCORE CORP
File Number: 333-175776