Demonstration of highly efficient broadband amplification in a optical parametric chirped-pulse amplifier system

Okada, Hajime; Kiriyama, Hiromitsu; Mori, Michiaki; Nakai, Yoshiki; Shimomura, Takuya*; Tanoue, Manabu*; Kondo, Shuji; Kanazawa, Shuhei; Daido, Hiroyuki; Kimura, Toyoaki*; Tajima, Toshiki

We have demonstrated highly efficient broadband amplification by a parametric chirped pulse amplifier (OPCPA) system that uses high energy seed pulses. The OPCPA consists of three type I B-barium borate (BBO) crystals pumped by a Q-switched Nd:YAG laser. We successfully amplified the microjoule level seed pulses to 78 mJ with a pump-to-signal optical conversion efficiency of 26 % at a 10 Hz repetition rate. To our knowledge these results represent the most optically efficient OPCPA to date pumped by a typical Q-switched laser.

Language	:	English
Journal	:	Optical Review
Volume	:	16
Number	:	1
Pages	:	p.1 - 3
Publication Year/Month	:	2009/02
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Paper URL	:	https://doi.org/10.1007/s10043-009-0001-z
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Keywords	:	no keyword
Research Facility	:	Tキューブレーザー施設
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Registration No. : AA20080541
JAEA Abstracts No. : 37000316
Paper Submission No. : 5343

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