J. Phys. IV France
Volume 133, June 2006
Page(s) 691 - 695
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 691-695

DOI: 10.1051/jp4:2006133139

Efficient 20TW Ti:sapphire laser with two stage amplifiers

Zhaohua Wang, Zhiyi Wei, Weijun Ling, Peng Wang, Hao Teng, Jinrong Tian, Jun Zhang and Jie Zhang

Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

An efficient femtosecond Ti:sapphire laser facility by using two stage amplifiers was developed based on the chirped pulse amplification technique. Output energy of higher than 1J was obtained under the pump of two commercial Nd:YAG lasers with the maximum energy of 1.4J at 532nm, corresponding to an efficiency of about 34%. After through a standard vacuum compressor with a grating pair, we obtained 640mJ laser energy at 10Hz repetition rates, the autocorrelation measurement showed the pulse duration of about 33 fs, which infer to a peak power of about 20 TW.

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