Patents Represented by Attorney Anthony Handal

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  • Cable system incorporating highly linear optical modulator
    Patent number: 5031235
    Abstract: A system incorporating a pair of Mach-Zehnder modulators (164,166) for performing amplitude modulation of an optical carrier is disclosed. Each of the modulators is designed to suppress even order distortion products and develop third order distortion products of opposite sign and equal magnitude. The outputs of the two modulators are combined in a directional coupler (155) resulting in substantially suppressing second through fourth order distortion products.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: July 9, 1991
    Assignee: Hoechst Celanese Corp.
    Inventors: Donald Raskin, Kophu Chiang, James B. Stamatoff