Gain stability of saturation amplificated in optical parametric chirped-pulse amplification system

wei xiao-feng; l zhi-wei; zeng xiao-ming; huang xiao-jun; zhu qi-hua; wang xiao-dong; liu lan-qin; zhou kai-nan; wang xiao; guo yi

Volume 16 Issue 12

Dec. 2004

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wang wen-jun, gao xue-xi, li shu-hong, et al. Influence of temperature on rare earth sandwich double naphthalocyanines Langmuir-Blodgett multilayer films[J]. High Power Laser and Particle Beams, 2005, 17.

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wei xiao-feng, l zhi-wei, zeng xiao-ming, et al. Gain stability of saturation amplificated in optical parametric chirped-pulse amplification system[J]. High Power Laser and Particle Beams, 2004, 16.

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Gain stability of saturation amplificated in optical parametric chirped-pulse amplification system

1.
Department of Opto-Electronics,Harbin Institute of Technology,Harbin 150001,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China

Publish Date: 2004-12-15

Abstract

Abstract

laser system with high output stability was designed for three-stage optical parametric chirped-pulse amplification(OPCPA). The PPKTP crystal was chosed as the first-stage gain medium, the LBO and the KDP crystal were used for the second-stage and third-stage, respectively. Through numerical simulations, the output gain and gain stability were obtained for three stage optical parametric chirped pulse saturated amplification. In the case of pumping intensity jitter less than 6%, the output gain jitter of the OPCPA system is less than 1%. In the case of PPKTP crystal chosed as the first-stage quasi-phase matching gain medium, with a pump peak intensity of 30MW/cm2, which is far from damaging the PPKTP crystal, the saturation amplificated gain is 2×105 and the conversion efficiency is 20%.
- optical parametric chirped pulse amplification(opcpa),
- gain stability,
- saturation amplification

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