Methods for using resonant waveguide-grating filters and sensors

  • US 7,400,399 B2
  • Filed: 12/16/2005
  • Issued: 07/15/2008
  • Est. Priority Date: 11/05/1999
  • Status: Expired due to Term
First Claim
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1. A method of using a waveguide grating comprising:

  • providing a waveguide grating device, comprising;

    at least one waveguide having an end, the end having an endface; and

    a waveguide grating fabricated on the endface of the at least one waveguide, the waveguide grating having at least one waveguide layer and at least one grating layer;

    contacting the waveguide grating with a medium;

    propagating a signal having at least one signal attribute through the at least one waveguide such that the signal contacts the waveguide grating, the waveguide grating being configured such that the at least one signal attribute is consequently modified;

    determining at least one parameter of the medium using the modified signal attribute; and

    outputting the at least one parameter.

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