Comparator is integrated-optical system constructed on a LiNb03sub. waveguide chip. Only the laser, lens and detector are external to chip. Aluminized surface gratings serve as input coupler and beam splitter. Light beams striking edges are returned by ordinary total internal reflection. Three operating modes are possible: A "screening" mode, an "identification" mode and a novel "self-subtraction" mode.


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    Title :

    Fast Holographic Comparator


    Contributors:

    Published in:

    Publication date :

    1982-11-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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