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Integrated passively modelocked fiber lasers and method for constructing the same

  • US 6,072,811 A
  • Filed: 02/11/1998
  • Issued: 06/06/2000
  • Est. Priority Date: 02/11/1998
  • Status: Expired due to Term
First Claim
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1. A modelocked fiber laser, comprising:

  • a pump laser for generating laser energy at a pump wavelength;

    a highly-birefringent fiber gain medium having first and second polarization axes and having first and second ends which respectively define first and second ends of a laser cavity for amplifying the laser energy at a signal wavelength;

    a reflector coupled to the first end of said laser cavity, for reflecting the laser energy through said highly-birefringent fiber gain medium;

    a saturable absorber coupled to the second end of said laser cavity, for inducing modelocking of said fiber laser along either of said first and second polarization axes of said highly-birefringent fiber gain medium in the absence of any non-fiber, intra-cavity, polarization-manipulating elements; and

    an output for outputting the laser energy amplified within said laser cavity.

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