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Integrated optical waveguide circuit and optical branch line test system using the same

  • US 5,546,483 A
  • Filed: 08/01/1994
  • Issued: 08/13/1996
  • Est. Priority Date: 08/02/1993
  • Status: Expired due to Term
First Claim
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1. An integrated optical waveguide circuit comprising:

  • a substrate;

    an optical wavelength multiplexer formed on a surface of said substrate and composed of a first slab optical waveguide, a second slab optical waveguide, a single or a plurality of input optical waveguides connected to said first slab optical waveguide at one end of the first slab optical waveguide, an array of optical waveguides arranged in parallel and having different lengths and connected to the first slab optical waveguide and the second slab optical waveguide, and a plurality of output optical waveguides arranged in parallel and connected to the second slab optical waveguide; and

    an optical power splitter formed on said surface of the substrate and composed of said second slab optical waveguide, means for inputting light to said second slab optical waveguide, and said plurality of output optical waveguides arranged in parallel and connected to the second slab optical waveguide.

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