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Optical device

  • US 7,315,672 B2
  • Filed: 11/22/2004
  • Issued: 01/01/2008
  • Est. Priority Date: 11/28/2003
  • Status: Active Grant
First Claim
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1. An optical device comprising:

  • a planar optical waveguide including;

    an input optical waveguide for input of an optical signal;

    an output optical waveguide for outputting an optical signal from the input optical waveguide; and

    an auxiliary optical waveguide for guiding light that does not enter the output optical waveguide, out of the optical signal from the input optical waveguide;

    a movable mirror for reflecting the optical signal from the input optical waveguide toward the output optical waveguide or toward the auxiliary optical waveguide;

    driving means for driving the movable mirror; and

    light monitoring means for monitoring light passing at least one of the input optical waveguide, the output optical waveguide, and the auxiliary optical waveguide, wherein the light monitoring means is provided on an end face of the planar optical waveguide.

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