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Optical source with mode reshaping

  • US 5,513,196 A
  • Filed: 02/14/1995
  • Issued: 04/30/1996
  • Est. Priority Date: 02/14/1995
  • Status: Expired due to Term
First Claim
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1. An optical source comprising:

  • a first optical reflector;

    at least a second optical reflector aligned with said first optical reflector to define a resonating structure;

    an optically active medium means for supporting multiple transverse modes, said optically active medium means disposed in said resonating structure;

    an integrated optical mode filter structure in an optical path within said resonating structure, the integrated optical mode filter structure comprising;

    mode reshaping means for reshaping said transverse modes, said mode reshaping means having a first port and a second port, said first port coupled to a matching multimode port of said optically active medium means; and

    a waveguide means, said waveguide means coupled to said second port, said waveguide means for supporting a different mode structure than mode structure of said multimode laser exciter; and

    means for extracting coherent optical energy from the optical path passing through said mode reshaping means.

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