Nepean, Ontario and San Jose, California - October 18, 1999 - JDS Uniphase Corporation (Nasdaq: JDSU and TSE:JDU) announced the acquisition of Ramar Corporation, a developer of lithium niobate- based integrated optical components. The terms of the acquisition were not disclosed.

Ramar will be integrated into the JDS Uniphase modulator business, which produces lithium niobate modulator components for the telecommunications industry. Dr. Paul Suchoski, vice president and general manager of the JDS Uniphase Bloomfield operations, stated, "We expect the Ramar acquisition to add significant technical capabilities to our 10- and 40-gigabit lithium niobate modulator product development activities. Through this acquisition, we believe we can accelerate and broaden our product introductions in these key markets."

Dr. Amaresh Mahapatra, founder and president of Ramar Corporation, added, "We believe the resources of JDS Uniphase will enable us to achieve faster time to market and higher performance with the lithium niobate technology developed at Ramar. We are excited about joining the industry leader and contributing to the future success of its modulator business."

Ramar Corporation is based in Northborough, Massachusetts, and employs 14 people.

JDS Uniphase is a high technology company that designs, develops, manufactures and distributes a comprehensive range of products for the growing fiberoptic communications market. These products are deployed by system manufacturers worldwide to develop advanced optical networks for the telecommunications and cable television industries. JDS Uniphase Corporation is traded on the Nasdaq National Market under the symbol JDSU and the exchangeable shares of JDS Uniphase Canada Ltd. are traded on The Toronto Stock Exchange under the symbol JDU. More information on JDS Uniphase is available at www.jdsunph.com.

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. These statements may be identified by their use of forward-looking terminology such as "believes," "expects," "may," "should," "would," "will," "intends," "plans," "estimates," "anticipates," and similar words. Such forward-looking statements include, but are not limited to, statements regarding the expected additional technical capabilities added by the Ramar acquisition to certain JDS Uniphase product development cycles, the plans to accelerate and broaden certain JDS Uniphase product introductions, and the belief that the resources of JDS Uniphase will enable faster time to market and higher performance with certain technology developed by Ramar. Such forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those projected. Risks and uncertainties that could cause actual results to differ materially from such forward-looking statements include, but are not limited to, factors discussed from time to time in reports filed by JDS Uniphase Corporation with the Securities and Exchange Commission. The forward-looking statements contained in this news release are made as of the date hereof and JDS Uniphase Corporation assumes no obligation to update the reasons why actual results could differ materially from those projected in the forward-looking statements.

For Further Information
Kevin N. Kalkhoven, Co-Chairman and CEO--(408) 434-1800
Anthony R. Muller, Senior VP and Chief Financial Officer--(408) 434-1800