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Title of Journal: Appl Phys B

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Abbravation: Applied Physics B

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Springer-Verlag

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DOI

10.1007/s10165-010-0370-y

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1432-0649

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Generation of high average power 75fs blue puls

Authors: X Zhou T Kanai D Yoshitomi T Sekikawa S Watanabe
Publish Date: 2005/06/14
Volume: 81, Issue: 1, Pages: 13-17
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Abstract

The spectral width of a 5kHz Tisapphire laser system was broadened by spectral control in a regenerative amplifier consisting of broadband chirped mirrors The dispersion over the wide spectral range was compensated by a deformable mirror along with a genetic algorithm resulting in a pulse width of 15 fs The pulse width is the shortest to our knowledge in chirped pulse amplification systems with a regenerative amplifier The phase distortion of broadband frequency doubling in addition to the Tisapphire laser was compensated by using the selfdiffraction intensity in sapphire as the feedback signal into the genetic algorithm resulting in a pulse width of 75 fs The average power of the second harmonic was 1 W with a fundamental input of 7 W

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