Optical device

  • US 20050271313A1
  • Filed: 03/25/2005
  • Published: 12/08/2005
  • Est. Priority Date: 03/26/2004
  • Status: Active Grant
First Claim
Patent Images

1. An optical element comprising a substrate formed of a material having an electrooptic effect, a top optical waveguide formed on a top face of said substrate, a bottom optical waveguide formed on a bottom face of said substrate, a top modulating electrode for controlling a phase of a light wave being propagated through said top optical waveguide, and a bottom modulating electrode for controlling a phase of a light wave being propagated through said bottom optical waveguide, wherein at least one side edge of said substrate comprises output and input of said optical waveguides formed on said top and bottom faces, and a turnback element is located adjacent to said one side edge to guide the light wave from said output to said input.

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