Nepean, Ontario, San Jose, Calif., and Santa Rosa, Calif., January 3, 2000- JDS Uniphase Corporation (Nasdaq: JDSU and TSE: JDU) today announced that its Board of Directors has approved a two-for-one stock split of its common shares, subject to stockholder approval of an increase in the Company's authorized Common Stock. JDS Uniphase Canada Ltd. concurrently announced today that its Board of Directors has approved a two-for-one split of its Exchangeable Shares to mirror the JDS Uniphase Corporation stock split, which shall be effective concurrent with the JDS Uniphase stock split.

Stockholder approval of an increase in authorized capital from 600 million to 3 billion shares will be sought at a special meeting of the Company's stockholders, which has been scheduled for February 25, 2000 (for which the record date shall be January 21, 2000). Subject to receiving stockholder approval of the increase in authorized capital, the record date for the stock split shall be March 1, 2000. Following such approval, the payment date for the stock split shall be March 10, 2000. Each of these dates is subject to the timing of any review by the Securities and Exchange Commission of proxy materials for the special stockholders' meeting.

JDS Uniphase is a high technology company that designs, develops, manufactures and distributes a comprehensive range of products for the growing fiberoptic communications markets. These products are deployed worldwide by system manufacturers 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 http://www.jdsunph.com/.