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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
Source PublicationOpt. Eng.
Volume56Issue:1
AbstractThe 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)
SubtypeArticle
Department联合
DOI10.1117/1.OE.56.1.011021
Funding OrganizationCollaboration 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]
Indexed BySCI
Funding OrganizationCollaboration 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 IDWOS:000396389400024
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27882
Collection高功率激光物理国家实验室
Corresponding Authorzhyjiao@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
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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