Optomechanical analysis of the mounting performance of large laser transport mirrors

Optomechanical analysis of the mounting performance of large laser transport mirrors
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大型激光传输镜安装性能的光机分析

DOI:
10.1117/1.oe.54.3.035107
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发表时间:
2015-03
影响因子:
1.3
通讯作者:
Ma, Guohui
Ma, Guohui
中科院分区:
工程技术4区
文献类型:
--
作者:
Yuan, Xiaodong;Yao, Chao;Zhang, Zheng;Ma, Guohui

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抽象的。在高功率激光装置(SG-III)中,在几皮秒内将48束激光聚焦到目标中心的精度优于50微米(RMS),这依赖于数千个大型光学器件的严格规格,也给设计和安装的工程特性带来了巨大的挑战。提出了一种参数光学力学方法来评价400 mm大口径传输镜的性能。通过理论建模和数值分析,详细计算和讨论了装配结构、制造误差、安装载荷和重力等因素对镜面像差的影响。通过现场实验和实例分析,该方法在镜面像差评定中表现出了较好的性能,同时也发现了现有镜面安装技术的负面影响。最后,在讨论其优点的基础上,提出了一种新的装配设计方案。
Abstract. In the high-power laser facility (SG-III), focusing 48 laser beams into the target center better than 50 microns (RMS) within a few picoseconds is dependent on the stringent specifications of thousands of large optics and also puts huge challenges on the engineering characteristics of the design and mounting. A parametric optomechanical method is proposed to evaluate the performance of a 400 mm large-aperture transport mirror. With theoretical modeling and numerical analysis, the impacts of assembly structure, manufacturing errors, mounting loads, and gravity on the mirror surface aberrations are calculated and discussed in detail. With field experiments and case studies, the proposed method shows a powerful performance on the mirror surface aberrations’ evaluation, and negative impacts of currently used mounting techniques for the mirror are found. Finally, a new assembly design is presented based on a discussion of its advantages.
DOI: 10.1117/12.218410
发表时间: 1995-09
期刊: High Power Laser and Particle Beams
影响因子: --
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DOI: 10.1109/fusion.2002.1027741
发表时间: 2001-11
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