The influence of output pulse spectral shape and bandwidth on pulse contrast in the chirped pulse amplification

被引：1
|
作者：
Yang, Qingwei [1 ]
Liu, Mingwei [2 ]
Xie, Xinglong [1 ]
Kang, Jun [1 ]
Guo, Ailin [1 ]
Zhu, Haidong [1 ]
Gao, Qi [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Natl Lab High Power Laser & Phys, Shanghai 201800, Peoples R China
[2] Hunan Univ Sci & Technol, Changsha 411201, Hunan, Peoples R China
来源：
OPTIK | 2014年 / 125卷 / 03期
关键词：
Contrast ratio; Spectral shape; Spectral bandwidth; CPA; TEMPORAL CONTRAST; LASER SYSTEM; ENHANCEMENT; DEGRADATION; GENERATION; RATIO;
D O I：
10.1016/j.ijleo.2013.09.014
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple model is presented to analyze the spectral shape and bandwidth dependence of the pulse contrast and compressed pulse width in the chirped pulse amplification. The parameters of the 30 fs laser system are demonstrated as examples. Comparing with Top hat, Lorentzian, Sech(2), Gaussian, 2nd Super Gaussian and 10th Super Gaussian spectral pulse shape, the 2nd Super Gaussian spectral pulse shape can obtain better contrast in the case of less spectral bottom width. Those results are helpful to find an optimized spectral shape in the chirped pulse amplification. (C) 2013 Elsevier GmbH. All rights reserved.
引用
收藏
页码：1448 / 1450
页数：3
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