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Fiber-coupled microsphere laser

  • US 6,487,233 B2
  • Filed: 02/23/2001
  • Issued: 11/26/2002
  • Est. Priority Date: 02/23/2000
  • Status: Expired due to Fees
First Claim
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1. A device, comprising:

  • a resonator formed of a laser gain medium in a shape of at least a portion of a sphere that includes an equator of said sphere, said laser gain medium operable to absorb light at a pump wavelength and to emit light at a laser wavelength, said resonator configured to support whispering gallery modes at both said pump wavelength and said laser wavelength; and

    an optical fiber configured to guide light at both said pump wavelength and said laser wavelength and to include an angle-polished facet that forms an angle with respect to said fiber, wherein said angle-polished facet positioned near said resonator to evanescently couple pump light at said pump wavelength in said optical fiber into a whispering gallery mode at said pump wavelength and to evanescently couple light in a whispering gallery mode at said laser wavelength into said optical fiber.

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