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Pulse laser apparatus, terahertz measuring apparatus, and terahertz tomographic apparatus

  • US 8,179,932 B2
  • Filed: 04/25/2011
  • Issued: 05/15/2012
  • Est. Priority Date: 01/29/2008
  • Status: Active Grant
First Claim
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1. A pulse laser apparatus comprising:

  • a fiber amplifier configured to amplify and chirp a light pulse from a laser; and

    a pulse compressor configured to compress a pulse width of the light pulse from the fiber amplifier,wherein the fiber amplifier includes a rare-earth doped fiber that exhibits normal dispersion at a center wavelength of a wavelength spectrum of the light pulse from the laser,wherein the rare-earth doped fiber chirps the light pulse so that the light pulse has energy portions in a wavelength region longer than a zero-dispersion wavelength of the rare-earth doped fiber, andwherein the fiber amplifier is configured to give a loss to the energy portions.

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