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Mitigation of beam sampling grating damage induced by upstream flaws in the final optics assembly
Jiao, Zhaoyang; Sun, Mingying; Zhao, Dongfeng; Zhu, Jianqiang; zhyjiao@siom.ac.cn
2017
发表期刊Opt. Eng.
卷号56期号:1
摘要The high fluence performance of high-power laser systems is set by optical damage, especially in the final optics assembly (FOA). The flaws on the frequency converter surface can cause optical intensity intensification and, therefore, damage the downstream optical elements, such as the beam sampling grating (BSG), which is an important component in the FOA. Mitigation of BSG damage caused by flaws is discussed. Physical models are established to simulate the optical field enhancement on BSG modulated by the upstream flaw, considering both the linear and nonlinear propagation effects. Numerical calculations suggest that it is important to place the BSG in a properly selected position to mitigate the laser-induced damage. Furthermore, strict controls of flaw size, modulation depth, distance between frequency converter and focusing lens, and the thickness of the focusing lens are also significant to mitigate the BSG damage. The results obtained could also give some suggestions for damage mitigation of optical components and the layout design of the final optics assembly. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
文章类型Article
部门归属联合
DOI10.1117/1.OE.56.1.011021
资助者Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296] ; Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296] ; Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296] ; Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296]
收录类别SCI
资助者Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296] ; Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296] ; Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296] ; Collaboration on Advance Key Techniques for Inertial Fusion Energy [2012DFG62040]; National Natural Science Foundation of China [11104296]
WOS记录号WOS:000396389400024
引用统计
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/27882
专题高功率激光物理国家实验室
通讯作者zhyjiao@siom.ac.cn
作者单位中国科学院上海光学精密机械研究所
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GB/T 7714
Jiao, Zhaoyang,Sun, Mingying,Zhao, Dongfeng,et al. Mitigation of beam sampling grating damage induced by upstream flaws in the final optics assembly[J]. Opt. Eng.,2017,56(1).
APA Jiao, Zhaoyang,Sun, Mingying,Zhao, Dongfeng,Zhu, Jianqiang,&zhyjiao@siom.ac.cn.(2017).Mitigation of beam sampling grating damage induced by upstream flaws in the final optics assembly.Opt. Eng.,56(1).
MLA Jiao, Zhaoyang,et al."Mitigation of beam sampling grating damage induced by upstream flaws in the final optics assembly".Opt. Eng. 56.1(2017).
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