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Optical multiplexer and cross-switch using etched liquid crystal fabry-perot etalons

  • US 20020154268A1
  • Filed: 02/02/2001
  • Published: 10/24/2002
  • Est. Priority Date: 07/25/2000
  • Status: Active Grant
First Claim
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1. A liquid crystal Fabry-Perot etalon comprising:

  • a first substrate coated on a first side with a first transparent conductor layer;

    a first reflector layer disposed over the first transparent conductor layer on the first side of the first substrate;

    an alignment layer disposed over the first transparent conductor layer on the first side of the first substrate;

    a spacer plate coated on a first side with a second transparent conductor layer, the first side of the spacer plate facing the first side of the first substrate, the spacer plate having a second side opposite its first side;

    plural spacers disposed between the first substrate and the spacer plate to define a predetermined gap between the first substrate and the spacer plate;

    liquid crystal filled in between the first substrate and the spacer plate; and

    a second substrate coated on a first side with a second reflector layer, the first side of the second substrate facing the second side of the spacer plate.

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