Exhibit 21.1

OCLARO, INC. SIGNIFICANT SUBSIDIARIES

Avanex Communications Technologies Co., Ltd., a People’s Republic of China Company

Oclaro (Canada), Inc., a Canadian corporation

Oclaro Innovations LLP, a U.K. limited liability partnership

Oclaro Japan, Inc., a Japanese corporation

Oclaro (North America), Inc., a Delaware corporation

Oclaro Technology, Inc., a Delaware corporation

Oclaro Technology Ltd., a U.K. corporation

Oclaro Technology (Shenzhen) Co., Ltd., a People’s Republic of China company

Opnext, Inc., a Delaware corporation

Opnext Subsystems, Inc., a Delaware corporation