CIENA APPOINTS RAFAEL DE ORY MANAGING DIRECTOR, EMEA

London — 04/17/2001

Ciena Corporation (NASDAQ: CIEN), a global leader in intelligent optical networking systems and software, today announced that Rafael de Ory has been appointed to the newly created position of Managing Director, Europe, Middle East and Africa (EMEA). Mr. de Ory is primarily responsible for managing regional operations and expanding Ciena's strategic business relationships with service providers. In addition to broadening Ciena's customer base, he will be tasked with continuing the company's excellence in systems engineering and field support across the region. Mr. de Ory's office is at Ciena's EMEA headquarters in London.

Prior to joining Ciena, Mr. de Ory held multiple senior positions both domestically and internationally at Alcatel. Most recently, Mr. de Ory served as a vice president for Alcatel Spain and Latin America where he was responsible for defining and implementing regional corporate strategies for business development, marketing and sales efforts.

"The economic advantages of Ciena's leading optical solutions have positioned us to lead the worldwide transition from legacy networks to intelligent optical networking," said Gary Smith, president and COO of Ciena. "With more than two decades of experience in telecommunications, Rafael will strengthen Ciena's burgeoning presence in the EMEA region and contribute sound guidance and leadership for our global growth."

"Ciena's growing product line offers service providers the essential capacity, switching and software tools to enable the next-generation of customized services while drastically reducing costs," de Ory said. "I am committed to extending these much-needed benefits to meet the unique requirements for new and existing customers in the EMEA region." Mr. de Ory earned an M.S. in computer science from the University of California, Los Angeles and a graduate degree in electronics from the Polytechnic School of Madrid, Spain.


About Ciena

Ciena Corporation's market-leading optical networking systems form the core for the new era of networks and services worldwide. Ciena's LightWorks™ architecture enables next-generation optical services and changes the fundamental economics of service-provider networks by simplifying the network and reducing the cost to operate it. Additional information about Ciena can be found at http://www.ciena.com.
Note to Investors
This press release contains certain forward-looking statements based on current expectations, forecasts and assumptions of Ciena (the Company) that involve risks and uncertainties. Forward-looking statements in this release including the Company's belief that Ciena's products will enable the next-generation of customized services while drastically reducing costs are based on information available to the Company as of the date hereof. The Company's actual results could differ materially from those stated or implied in such forward-looking statements, due to risks and uncertainties associated with the Company's business, which include the risk factors disclosed in the Company's Report on Form 10-Q filed with the Securities and Exchange Commission on February 15, 2001. Forward looking statements include statements regarding the Company's expectations, beliefs, intentions or strategies regarding the future and can be identified by forward looking words such as "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "should," "will," and "would" or similar words. The Company assumes no obligation to update the information included in this press release, whether as a result of new information, future events or otherwise.
Press Contacts:
Nicole Anderson
Ciena Corporation
(877) 857 -7377
pr@ciena.com
Investor Contacts:
Marie Downing
Ciena Corporation
(888) 243-6223
ir@ciena.com