Experimental investigation on pulse-contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification

被引：10
作者：
Wang, Xinliang [1 ,2 ,3 ]
Lu, Xiaoming [2 ]
Guo, Xiaoyang [4 ]
Xu, Rongjie [2 ]
Leng, Yuxin [2 ,3 ]
机构：
[1] Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Osaka Univ, Osaka 5650871, Japan
来源：
CHINESE OPTICS LETTERS | 2018年 / 16卷 / 05期
基金：
中国国家自然科学基金;
关键词：
FRONT-END; LASER; AMPLIFIER; PW;
D O I：
10.3788/COL201816.053201
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this Letter, we experimentally explore the pulse-contrast degradation caused by surface reflection in optical parameter chirped-pulse amplification. Different pump-to-signal conversion efficiencies and post-pulses with different intensities are obtained by changing the seed-pulse or pump-pulse energy and inserting etalons with different reflection coefficients, respectively. The contrast measurements show that the generated first pre-pulse intensity is proportional to the product of the surface reflection intensity ratio and the square of the pump-to-signal conversion efficiency.
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页数：4
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