Form: EFFECT

Notice of Effectiveness

September 28, 2011

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

Notice of Effectiveness

Effectiveness Date: September 28, 2011 10:00 A.M.
Form: S-1
CIK: 0000808326
Company Name: EMCORE CORP
File Number: 333-176797