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Asymmetrical distributed feedback fiber laser

  • US 6,188,712 B1
  • Filed: 08/09/1999
  • Issued: 02/13/2001
  • Est. Priority Date: 11/04/1998
  • Status: Expired due to Fees
First Claim
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1. An asymmetrical DFB fiber laser assembly comprising:

  • a single-mode, rare-earth doped optical fiber having a grating, said grating having a reflectivity which is less than 100%;

    a hi-birefringent, single mode optical fiber having an input end and an output end that is coupled to an input end of said single-mode rare-earth doped optical fiber, said hi-birefringent, single mode optical fiber having a grating, said grating having a substantially 100% reflectivity; and

    a light source coupled to said input end of said hi-birefringent, single mode optical fiber, said light source having an output wavelength within the rare-earth absorption spectrum.

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