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Optical devices based on optically coupled optical whispering gallery-mode resonators formed on a rod

  • US 8,289,616 B1
  • Filed: 01/24/2012
  • Issued: 10/16/2012
  • Est. Priority Date: 05/15/2008
  • Status: Active Grant
First Claim
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1. An optical device having an optical whispering gallery mode resonator, comprising:

  • an optical resonator that is shaped to include an optical path and supports whispering gallery modes propagating in the optical path and including a selected whispering gallery mode that has a zero electric field at a selected location in the optical path at which electric fields of other whispering gallery modes are not zero; and

    an optically absorptive structure formed at the selected location in the optical path of the optical resonator and structured to absorb light of the other whispering gallery modes at the selected location without absorbing light in the selected whispering gallery mode so as to sustain the light in the selected whispering gallery mode as a single optical mode in the optical resonator while suppressing the other whispering gallery modes.

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