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Report No.

Broadband nonlinear preamplifier for high-intensity femtosecond diode-pumped Yb:YAG hybrid chirped-pulse amplification laser system

Suzuki, Masayuki; Kiriyama, Hiromitsu; Daito, Izuru; Okada, Hajime; Nakai, Yoshiki; Orimo, Satoshi; Sato, Masatoshi*; Tamaoki, Yoshinori*; Yoshii, Takehiro*; Maeda, Junya*; Matsuoka, Shinichi*; Kan, Hirofumi*; Bolton, P.; Daido, Hiroyuki; Kawanishi, Shunichi

We have reported the demonstration of an optical parametric chirped-pulse amplification (OPCPA) operating at 1030 nm. A total OPCPA output energy of 6.5 mJ (uncompressed) with gain exceeding of 10$$^{7}$$ has been achieved with a spectral bandwidth of 10.8 nm and a recompressed pulse duration of 230 fs. This novel system is a promising alternative to the RA as a nonlinear preamplifier for compact, high intensity, Yb:YAG CPA laser using DPPSL systems.



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