30-mJ, diode-pumped, chirped-pulse Yb:YLF regenerative amplifier |
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| Authors: | Kawanaka Junji Yamakawa Koichi Nishioka Hajime Ueda Ken-ichi |
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| Affiliation: | Advanced Photon Research Center, Japan Atomic Energy Research Institute, 8-1 Umemidai, Kizu-cho, Soraku-gun, Kyoto 619-0215, Japan. kawanaka@apr.jaeri.go.jp |
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| Abstract: | ![]()
A diode-pumped chirped-pulse regenerative amplifier with a cooled Yb:YLF crystal has been developed. The output pulse energy is 30 mJ at 20-Hz repetition rate. A high effective extraction efficiency of 68% is obtained, which is attributed to reduced saturation fluence at low temperature and to a high effective pulse energy fluence during regenerative amplification. After pulse compression by use of a parallel grating pair, 18-mJ pulse energy and 795-fs pulse duration are obtained. |
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