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Optical devices having WGM cavity coupled to side-polished port

  • US 7,085,452 B1
  • Filed: 03/18/2004
  • Issued: 08/01/2006
  • Est. Priority Date: 03/21/2003
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a fiber having a side surface formed on fiber cladding where an evanescent field of guided light in said fiber exists; and

    a planar whispering gallery mode cavity formed on said side surface to support one or more whispering gallery modes and configured to evanescently extract energy in light guided in said fiber into a whispering gallery mode;

    said planar whispering gallery mode cavity comprising a top cladding ring, a cavity ring, and a bottom cladding ring having a planar coupling surface, said bottom cladding ring coupled to said evanescent field of guided light.

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