摘要
A scheme of double grating expanders is first proposed for high energy chirped pulse amplifiers.It is demonstrated that they can compensate for the amplifier's material dispersion up to the fourth-order,together with a suitable grating compressor.The scheme makes it possible that the pulse expansion in Chirped pulse amplifiers(CPAs)is no longer restricted by the material dispersion,and the corresponding grating compressor can be independently optimized according to the available gratings'size and damage threshold.
作者
WANG Cheng
LENG Yu-Xin
王乘;冷雨欣(State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800)
基金
Chinese Academy of Sciences,the National Natural Science Foundation of China under Grant Nos 10734080,60921004,60908008 and 61078037
the National Basic Research Program of China under Grant No 2011CB808101
International S&T Cooperation Program of China under Grant No 2011DFA11300.
