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Optical channel monitor

  • US 20030007148A1
  • Filed: 05/31/2002
  • Published: 01/09/2003
  • Est. Priority Date: 06/01/2001
  • Status: Active Grant
First Claim
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1. An optical channel monitor of an optical input signal that includes a plurality of optical channels, the optical channel monitor comprising:

  • a first optical waveguide for projecting the optical input signal;

    a collimator to collimate the input signal projecting from the optical lens;

    a light dispersion element that diffracts the collimated light into spectrally spaced optical channels;

    a reflector that reflects the spectrally-spaced optical channels back to the light dispersion element;

    a first mirror disposed adjacent to the reflector that provides an optical signal indicative of the first relative position of the reflector; and

    a pivoting mechanism that rotates at least one of the light dispersion element and the reflector to spectrally move the spectrally-spaced optical channels to select an optical channel.

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