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COMPACT, COHERENT, HIGH BRIGHTNESS LIGHT SOURCES FOR THE MID AND FAR IR

  • US 20120205352A1
  • Filed: 02/14/2011
  • Published: 08/16/2012
  • Est. Priority Date: 02/14/2011
  • Status: Active Grant
First Claim
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1. A fiber-laser based system, comprising;

  • a passively mode locked fiber oscillator operating at or near a wavelength of 2000 nm, said oscillator comprising a plurality of fiber sections, each section having at least one length of fiber, wherein;

    a first fiber section has a positive dispersion value, D21,a second fiber section has a negative dispersion value, D22,said first fiber section has a negative third order dispersion value, D31,said second fiber section has a positive third order dispersion value, D32,and said dispersion values approximately satisfy the relation;


    0.2<

    (D21/D31)/(D22/D32)<

    5,wherein said dispersion values provide overall cavity dispersion in a range of about ±

    20,000 fs2 per meter intra-cavity fiber length; and

    a pump source to pump said passively mode locked fiber oscillator.

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