Optical Design and Engineering

Optomechanical analysis of the flexure mounting configuration of large-aperture laser transport mirror

[+] Author Affiliations
Zheng Zhang, Hui Wang

Tsinghua University, Department of Mechanical Engineering, Beijing, China

Tsinghua University, State Key Laboratory of Tribology, Beijing, China

Xusong Quan, Zhao Xiong, Xiaodong Yuan

China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China

Tianye Liu, Yiming Rong

Tsinghua University, Department of Mechanical Engineering, Beijing, China

Opt. Eng. 56(2), 025103 (Feb 21, 2017). doi:10.1117/1.OE.56.2.025103
History: Received November 21, 2016; Accepted February 2, 2017
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Abstract.  Motivated by the demand to minimize the mount-induced wavefront aberration of the large-aperture laser transport mirror, a low-stress flexure mounting configuration is proposed. Specific optomechanical analyses, including theoretical modeling, numerical analysis and field experiment, are presented. The mechanical properties of the flexure support were studied specifically. Besides, the relation between the mounting forces and the root-mean-square of the gradients (GRMS) value of the mirror surface is studied. Then, the appropriate value of the bolt preload is set to 500N, with which the GRMS value is just 5.35  nm/cm. The results indicate that the flexure mounting configuration is indeed a feasible and promising method to solve the mount-induced distortion problem of large-aperture optics.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Zheng Zhang ; Xusong Quan ; Hui Wang ; Tianye Liu ; Zhao Xiong, et al.
"Optomechanical analysis of the flexure mounting configuration of large-aperture laser transport mirror", Opt. Eng. 56(2), 025103 (Feb 21, 2017). ; http://dx.doi.org/10.1117/1.OE.56.2.025103


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