Exhibit 21.1

EMCORE Corporation Subsidiaries*

Corona Optical Systems, Inc., A Delaware corporation

EMCORE Fiber Optics, Inc., a Delaware corporation

EMCORE Hong Kong, Limited, a Hong Kong corporation

K2 Optronics, Inc. a Delaware corporation

Langfang EMCORE Optoelectronics Company, Limited, a Chinese corporation

Opticomm Corporation, a Delaware corporation

*As of December 14, 2015