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《High Power Laser and Particle Beams》 2006-12
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Effect of misalignment of grating pair on temporal profile of ultra-short pulse in OPCPA system

SU Juan~1,FENG Guo-ying~1,LIU Wen-bing~(1,3),MA Zai-ru~1,YING Ping~1,DING Shi-peng~1,ZHU Qi-hua~2 (1.College of Electronic Information,Sichuan University,Chengdu 610064,China;2.Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China;3.Southwest Institute of Techniques and Physics,Chengdu 610041,China)  
The dispersions resulted from practical stretcher and compressor in optical parametric chirped pulse amplify system are studied by ray-tracing method,and the pulse amplify is numerically simulated using Runge-Kutta method.The effects of misalignment of grating planes and grooves,signal intensity and pump intensity are discussed.The simulations show that misalignment of gating planes leads to pulse broadening.When the angle of grating groove is 0.8°,the pulse width is the narrowest in the case of group delay dispersion.When the angle of grating groove is 1°,the pulse width is the narrowest in the case of three-order dispersion.
【Fund】: 等离子体物理国家级重点实验室开放基金资助课题(CD200509);; 中国工程物理研究院-国家自然科学基金委联合基金资助课题(10676028)
【CateGory Index】: TN722
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