Ciena Corporation (NASDAQ: CIEN) will announce results for its fiscal first quarter 2009 on Thursday, March 5, 2009, via Business Wire and First Call before the open of the financial markets. The press release also will be available on Ciena’s website at www.ciena.com.

In conjunction with the announcement, Ciena’s management will host a live web broadcast beginning at 8:30 AM (Eastern) on March 5, 2009 at www.ciena.com.

Rebroadcast Information

For those listeners unable to participate in the live web broadcast on Thursday, March 5, 2009, an archived version of the conference call will be available shortly following the conclusion of the live call in the Investor Relations/Events section of Ciena’s website at: www.ciena.com.

About Ciena

Ciena specializes in the transition to service-driven networks. We provide flexible platforms, intelligent software and professional services to help our customers use their networks to fundamentally change the way they compete. With a growing global presence, Ciena leverages its heritage of practical innovation to deliver maximum performance and economic value in communications networks worldwide. We routinely post recent news, financial results and other important announcements and information about Ciena on our website at www.ciena.com.