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Optical path control device

  • US 20040208412A1
  • Filed: 03/31/2004
  • Published: 10/21/2004
  • Est. Priority Date: 04/21/2003
  • Status: Abandoned Application
First Claim
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1. An optical path control device comprising an optical waveguide having a clad layer of P-type (or N-type) formed on a substrate and a core layer of N-type (or P-type) stacked on the clad layer, and electrodes formed on both sides of a part of the optical waveguide, wherein a voltage is applied between the electrodes to change the refractive index at the part of the optical waveguide where the electrode is formed.

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