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Demonstration of highly efficient broadband amplification in a optical parametric chirped-pulse amplifier system |
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| Authors: | Hajime Okada Hiromitsu Kiriyama Michiaki Mori Yoshiki Nakai Takuya Shimomura Manabu Tanoue Shuji Kondo Shuhei Kanazawa Hiroyuki Daido Toyoaki Kimura Toshiki Tajima |
| Institution: | (1) Advanced Photon Research Center, Japan Atomic Energy Agency, Kizugawa, Kyoto 619-0215, Japan |
| Abstract: | We have demonstrated highly efficient broadband amplification by an optical 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. |
| Keywords: | solid-state laser OPCPA ultra-short pulse spectral shaping |
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