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10 PW级激光系统波前演变及分析

Wavefront Evolution and Analysis of 10-Petawatt Laser System

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摘要

基于上海超强超短激光装置(SULF),选取各分系统关键节点进行波前测量,分析波前畸变的起源、演变及原因,并讨论了光学器件安装应力与钛宝石晶体质量对波前的影响。结果表明,激光波前畸变值随着大口径光学器件数量的增多而增大,光学镜片的面形加工误差、安装调试误差是影响钛宝石激光放大器中波前畸变的重要因素,对激光的聚焦性能有较大影响。对激光系统波前的测量有利于优化与控制整个系统的波前畸变,从而有助于提升光束质量和聚焦功率密度。

Abstract

The key nodes of laser subsystems on the Shanghai Ultrafast Laser Facility are selected to measure the laser beam wavefronts, and then the origin, evolution, and causes of wavefront distortion are analyzed. Further, the effects of installation stress of optical devices and quality of Ti∶sapphire crystals on the wavefront are investigated. The results demonstrate that the laser wavefront distortion increases with the increasing number of large-aperture optical devices. Facet fabrication and installation and debugging errors of optical lenses are particularly important factors affecting wavefront distortion in a Ti∶sapphire laser amplifier. Such errors greatly affect the focusing ability of the laser. Measuring the wavefront of the laser system can help optimize and control the wavefront distortion of the entire system. In addition, such measurements can improve beam quality, focal spot properties, and focusing power density.

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中图分类号:O436

DOI:10.3788/CJL201946.0801006

所属栏目:激光器件与激光物理

基金项目:国家自然科学基金、中国科学院战略性科技先导专项;

收稿日期:2019-03-04

修改稿日期:2019-04-12

网络出版日期:2019-08-01

作者单位    点击查看

王建业:中国科学院上海光学精密机械研究所强场激光物理国家重点实验室, 上海 201800中国科学院大学, 北京 100049上海科技大学, 上海 201210
郭震:中国科学院上海光学精密机械研究所强场激光物理国家重点实验室, 上海 201800中国科学院大学, 北京 100049
於亮红:中国科学院上海光学精密机械研究所强场激光物理国家重点实验室, 上海 201800
甘泽彪:中国科学院上海光学精密机械研究所强场激光物理国家重点实验室, 上海 201800
李文启:中国科学院上海光学精密机械研究所强场激光物理国家重点实验室, 上海 201800
梁晓燕:中国科学院上海光学精密机械研究所强场激光物理国家重点实验室, 上海 201800

联系人作者:於亮红(lhyu@siom.ac.cn); 梁晓燕(liangxy@siom.ac.cn);

备注:国家自然科学基金、中国科学院战略性科技先导专项;

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引用该论文

Wang Jianye,Guo Zhen,Yu Lianghong,Gan Zebiao,Li Wenqi,Liang Xiaoyan. Wavefront Evolution and Analysis of 10-Petawatt Laser System[J]. Chinese Journal of Lasers, 2019, 46(8): 0801006

王建业,郭震,於亮红,甘泽彪,李文启,梁晓燕. 10 PW级激光系统波前演变及分析[J]. 中国激光, 2019, 46(8): 0801006

被引情况

【1】康俊,崔自若,朱坪,高奇,郭爱林,朱海东,杨庆伟,孙美智,谢兴龙,朱健强. 超短超强激光装置中消色差技术的研究与进展. 激光与光电子学进展, 2020, 57(9): 90001--1

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