The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Laser Letter
Development of A Compact High-Spatiotemporal-Quality Yb:YAG Thin-Disk Laser System Using An Optical Parametric Preamplifier
Hiromitsu KIRIYAMA, Masayuki SUZUKI, Izuru DAITO, Hajime OKADA, Yoshihiro OCHI, Masatoshi SATO, Yoshinori TAMAOKI, Takehiro YOSHII, Junya MAEDA, Shinichi MATSUOKA, Hirofumi KAN, Keisuke NAGASHIMA, Akira SUGIYAMA, Kiminori KONDO, Paul BOLTON, Shunichi KAWANISHI, Hiroyuki DAIDO, Toyoaki KIMURA, Toshiki TAJIMA
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Keywords: Chirped-pulse amplification (CPA), Diode-pumping, Optical parametric chirped-pulse amplification (OPCPA), Yb:YAG laser, Thin-disk laser
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2012 Volume 40 Issue 2 Pages 143-

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Abstract
We demonstrate a compact, high-spatiotemporal-quality, high-intensity diode-pumped Yb:YAG thin-disk chirped-pulse amplification (CPA) laser system that incorporates a nonlinear preamplifier based on optical parametric chirped-pulse amplification (OPCPA). The stretched pulses are amplified in the OPCPA preamplifier and the following Yb:YAG main amplifier to ～100 mJ at 10 Hz. The broadband amplified beam quality of 1.1 (horizontal direction) and 1.4 (vertical direction) times diffraction limited and pulse compression down to 470 fs with contrast of better than 10－8 have been achieved successfully.
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© 2012 by The Laser Society of Japan
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