Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Toshihiko Ouchi0
Kentaro Furusawa0
Takashi Katagiri0
Date of Patent
May 31, 2011
0Patent Application Number
123547160
Date Filed
January 15, 2009
0Patent Primary Examiner
Patent abstract
A pulse laser apparatus includes a laser configured to generate a pulse of a laser beam, a fiber amplifier, and a pulse compressor. The fiber amplifier includes a rare-earth doped fiber that exhibits normal dispersion at a wavelength of the laser beam generated from the laser. The pulse laser apparatus further includes a unit configured to give a loss to energy portions in a wavelength region corresponding to a zero-dispersion wavelength of the rare-earth doped fiber and/or a wavelength region longer than the zero-dispersion wavelength within a wavelength spectrum of the laser beam having been chirped in the fiber amplifier.
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