Press Release

SUNNYVALE, Calif., May 15, 2002 (BUSINESS WIRE) -- Harmonic Inc. (Nasdaq: HLIT) today announced that it will be presenting at the Credit Suisse First Boston Technology Conference on Wednesday, May 15, 2002, at 11:15 A.M. Mountain Time (10:15 A.M. Pacific Time). The live audio webcast of Harmonic's presentation will be available from Harmonic's website, http://www.harmonicinc.com/, under the Investor Relations Events section. The replay will be available within 24 hours after the live presentation through close of business on May 22, 2002, at the same Web address.

    About Harmonic

Harmonic Inc. is a leading provider of digital video, broadband optical networking and IP delivery systems to cable, satellite, telecom and broadcast network operators. Harmonic's open standards-based solutions for the headend through the last mile enable customers to develop new revenue sources and a competitive advantage by offering powerful interactive video, voice and data services such as video-on-demand, high definition digital television, telephony and Internet access.

Harmonic (Nasdaq: HLIT) is headquartered in Sunnyvale, California with R&D, sales and system integration centers worldwide. The Company's customers, including many of world's largest communications providers, deliver services in virtually every country.

CONTACT:          Harmonic Inc.
                  Robin N. Dickson, 408/542-2500
                  Chief Financial Officer
                  or
                  StreetConnect
                  Michael Newman, 408/542-2760
                  Investor Relations

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