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

高効率広帯域OPCPA増幅手法の検証

岡田 大; 桐山 博光; 森 道昭; 中井 善基; 下村 拓也*; 田上 学*; 近藤 修司; 金沢 修平; 大道 博行; 木村 豊秋*; 田島 俊樹

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.

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パーセンタイル:40.81

分野:Optics

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