19 October 2016 Low-stress mounting configuration design for large aperture laser transport mirror
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Proceedings Volume 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation; 101540J (2016) https://doi.org/10.1117/12.2245944
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
TM1-6S1 large aperture laser transport mirror is a crucial optical unit of high power solid-state laser in the Inertial Confinement Fusion (ICF) facility. This article focuses on the low-stress and precise mounting method of large-aperture mirror. Based on the engineering practice of SG-III, the state-of-the-art and key problems of current mounting configuration are clarified firstly. Subsequently, a brand new low-stress mounting configuration with flexure supports is proposed. Opto-mechanical model of the mirror under mounting force is built up with elastic mechanics theory. Further, numerical methods and field tests are employed to verify the favorable load uniform capacity and load adjust capacity of flexure supports. With FEM, the relation between the mounting force from new configuration and the mirror surface distortion (wavefront error) is clarified. The novel mounting method of large aperture optics could be not only used on this laser transport mirror, but also on the other transmission optics and large crystals in ICF facilities.
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Zheng Zhang, Zheng Zhang, Xusong Quan, Xusong Quan, Chao Yao, Chao Yao, Hui Wang, Hui Wang, } "Low-stress mounting configuration design for large aperture laser transport mirror", Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101540J (19 October 2016); doi: 10.1117/12.2245944; https://doi.org/10.1117/12.2245944
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