Demonstration of a double chirped-pulse-amplification front-end system to improve the temporal contrast at a sub-petawatt laser

Na Xie; Kainan Zhou; Wanqing Huang; Xiaodong Wang; Li Sun; Yi Guo

doi:10.1117/1.OE.51.2.024201

27 February 2012 Demonstration of a double chirped-pulse-amplification front-end system to improve the temporal contrast at a sub-petawatt laser

Na Xie, Kainan Zhou, Wanqing Huang, Xiaodong Wang, Li Sun, Yi Guo

Author Affiliations +

Optical Engineering, Vol. 51, Issue 2, 024201 (February 2012). https://doi.org/10.1117/1.OE.51.2.024201

Abstract

The temporal contrast is an important factor affecting the application of ultra-intense and ultra-short lasers. In this paper, we develop a double chirped-pulse-amplification (CPA) front-end system with an intermediate nonlinear temporal pulse filter to improve the temporal contrast at a sub-petawatt Ti:sapphire laser facility, i.e. the super intense laser for experiment on the extremes (SILEX-I). The temporal pulse filter employs cross-polarized wave (XPW) generation to suppress the amplified spontaneous emission (ASE). The design output energy is 320 mJ for the front-end system. The experimental results show that the output energy of the double CPA system is 360 mJ. The ASE pedestal is suppressed significantly and the temporal contrast is improved by around three orders of magnitude.

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Na Xie, Kainan Zhou, Wanqing Huang, Xiaodong Wang, Li Sun, and Yi Guo "Demonstration of a double chirped-pulse-amplification front-end system to improve the temporal contrast at a sub-petawatt laser," Optical Engineering 51(2), 024201 (27 February 2012). https://doi.org/10.1117/1.OE.51.2.024201

Published: 27 February 2012

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