ADVISORY/Chorum Technologies' Dr. J.C. Chiao to Present At ElectroniCast's 13th Annual Fiber Optics Conference in Monterey, Calif.

News/Assignment Editors

ADVISORY...for Tuesday (May 1)

ElectroniCast Corporation Conference

--(BUSINESS WIRE)

Chorum Technologies to Co-Sponsor Event

  WHAT: Dr. J.C. Chiao from Chorum Technologies in Richardson,
        Texas, will present Advancements in Liquid Crystal Technology
        for Communications Networks at the 13th annual ElectroniCast
        Corporation Conference: Fiber Optics for the Next Decade. The
        conference, co-sponsored by Chorum Technologies, provides
        industry executives with information on market size and growth
        trends of the global fiber optics communication industry.

   WHO: Dr. Jung-Chih (J.C.) Chiao, Senior Technical Advisor, Chorum
        Technologies

          Dr. Chiao is Chorum Technologies' senior technical advisor for
        liquid crystal products, including attenuators, switches,
        cross connects, attenuator arrays, harmonic equalizers and
        advanced optical processors. Prior to Chorum he served as a
        research scientist at Telcordia in the Optical Networking
        Systems and Testbeds group. He also was an assistant professor
        and is now an adjunct professor in the Department of
        Electrical Engineering, University of Hawaii at Manoa. Dr.
        Chiao has published 53 technical journal and conference
        papers. He is one of the authors of the book Active and
        Quasi-Optical Arrays and holds 14 pending patents in RF MEMS,
        MEMS optics and liquid crystal technologies. He received his
        Ph.D. degree from the MMIC group in the Department of
        Electrical Engineering at the California Institute of
        Technology in 1995.

  WHEN: Tuesday, May, 1, 2001, 4:45-5:15 p.m. PST

 WHERE: Monterey Plaza Hotel
          400 Cannery Row
          Monterey, Calif. 93940
          Phone: [phone]; Fax: [phone]

VISUALS:Presentation to include schematics of optical signal
        processing architecture and performance results.

ABOUT
CHORUM: Chorum Technologies, Inc. is a leading provider of
        all-optical processors and subsystems in the fast-growing
        fiber-optics market. The company's PolarWave(TM) family of
        optically filtering, switching, routing and processing
        technologies enables networks that are faster, more flexible
        and more cost effective than today's networks. Chorum
        Technologies Inc. was founded in 1996 and is based in the
        Telecom Corridor(R) of Richardson, Texas. For more
        information, visit www.chorumtech.com.