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Optical sensing methods

  • US 7,512,298 B2
  • Filed: 12/01/2006
  • Issued: 03/31/2009
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
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1. A method of detecting optical scattering between two guided optical modes of a microresonator comprising:

  • providing an optical sensing system comprising;

    a light source;

    one or more bus waveguides, the one or more bus waveguides comprising a first bus waveguide that has an input port that is in optical communication with the light source; and

    a microresonator optically coupled to the one or more bus waveguides;

    exciting at least a first resonant guided optical mode of the microresonator with the light source;

    inducing a change in optical scattering from the first resonant guided optical mode to at least a second guided optical mode of the microresonator, the second mode being different than the first mode; and

    detecting the change in optical scattering.

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