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Fiber- or rod-based optical source featuring a large-core, rare-earth-doped photonic-crystal device for generation of high-power pulsed radiation and method

  • US 7,391,561 B2
  • Filed: 05/26/2006
  • Issued: 06/24/2008
  • Est. Priority Date: 07/29/2005
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first photonic-crystal optical device that includes a first waveguide that has a diameter of about 40 microns or more within a pump cladding and maintains a single transverse mode with operation at a peak power of at least about one megawatt (1 MW) and a beam quality M2 of less than 1.5.

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