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Dynamic diffractive optical transform

  • US 6,437,762 B1
  • Filed: 03/01/1999
  • Issued: 08/20/2002
  • Est. Priority Date: 01/11/1995
  • Status: Expired due to Fees
First Claim
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1. An optical switch, comprising:

  • a first port, having;

    a body of material having a first surface and a second surface, said second surface being non-orthogonal to said first surface, said material being characterized in that it produces a phase delay which varies in response to an electric potential applied across a portion of said material, a plurality of substantially-transparent electrodes disposed adjacent said first surface of said material, said electrodes being arranged in a predetermined pattern and having predetermined respective sizes and spacings with respect to at least one dimension x, at least one substantially-transparent electrode disposed adjacent said second surface of said material in predetermined relation to said electrodes disposed adjacent said first surface, and control means, connected to said electrodes disposed adjacent said first surface and at least said one electrode disposed adjacent said second surface so that said material is effectively partitioned into a plurality of diffractive optic components, each said component corresponding to one or more of said electrodes disposed adjacent said first surface, for applying selected electric potentials to respective said electrodes adjacent said first surface relative to an electrode adjacent said second surface so as to cause said phase delay to vary with respect to said dimension x substantially as follows;

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