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Far-field detection system for laser beam and crystal alignment

Far-field detection system for laser beam and crystal alignment

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Abstract

Laser beam far-field alignment as well as frequency-doubling and frequency-tripling crystal adjustment is very important for high-power laser facility. Separate systems for beam and crystal alignment are generally used while the proposed approach by off-axial grating sampling share common optics for these two functions, reducing both space and cost requirements. This detection system has been demonstrated on the National Laser Facility of Israel. The experimental results indicate that the average far-field alignment error is <5% of the spatial filter pinhole diameter, average autocollimation angle error of crystals is <10 μrad, and average frequency-tripling conversion efficiency is 69.3%, which meet the alignment system requirements on the beam direction and crystals.

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所属栏目:高功率激光单元与总体技术

基金项目:This work was performed under the auspices of the National Natural Science Foundation of China (61205137). The authors would like to express thanks to team staff in the National Laser Facility of Israel for providing the experimental support.

收稿日期:2015-12-18

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作者单位    点击查看

Jiachen Zhang:University of Chinese Academy of Sciences, No.19 Yuquan Road, Shijingshan District, Beijing 100049, ChinaChinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Key Laboratory of High Power Laser and Physics, No. 390, Qing he Road, Shanghai 201800, China
Daizhong Liu:Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Key Laboratory of High Power Laser and Physics, No. 390, Qing he Road, Shanghai 201800, China
Baoqiang Zhu:Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Key Laboratory of High Power Laser and Physics, No. 390, Qing he Road, Shanghai 201800, China
Shunxing Tang:Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Key Laboratory of High Power Laser and Physics, No. 390, Qing he Road, Shanghai 201800, China
Yanqi Gao:China Academy of Engineering Physics, Shanghai Institute of Laser Plasma, No. 390, Qing he Road, Shanghai 201800, China

联系人作者:Daizhong Liu(dzhliu@mail.shcnc.ac.cn)

备注:Jiachen Zhang received her Bachelor of Engineering degree in measurement-control technology and instrumentation from Jilin University in 2014. Now, she is a master's student at Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences. Her current research interests include laser techniques, image processing, and fine mechanics.

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引用该论文

Jiachen Zhang,Daizhong Liu,Baoqiang Zhu,Shunxing Tang,Yanqi Gao。 Far-field detection system for laser beam and crystal alignment[J]。 Collection Of theses on high power laser and plasma physics, 2016, 14(1): 036108

Jiachen Zhang,Daizhong Liu,Baoqiang Zhu,Shunxing Tang,Yanqi Gao. Far-field detection system for laser beam and crystal alignment[J]. 高功率激光及等离子体物理研究论文集(专题), 2016, 14(1): 036108

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