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激光系统中可调节支撑镜架的结构稳定性研究

Structural Stability of Adjustable Support Mirror Mount in Laser System

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摘要

激光器输出功率稳定及高功率激光装置中长光程传输光束指向稳定,都对维持光学件位置的支撑镜架稳定性提出了很高的要求。为了维持光束的准直性,支撑结构必须兼顾可调节性和稳定性,而可调节性将引入不稳定性。本文针对可调节支撑镜架中常用的调节结构提出一种结构改进设计,通过添加单独起导向作用的精密滑动配合,实现对传统调节结构中导向与传动耦合的螺纹配合进行功能解耦,降低了螺纹配合中较大径向间隙对导向精度的影响,提高了镜架的稳定性;搭建了稳定性对比测试装置,实现在同一光路中对不同光学镜架的稳定性对比测试。实验结果验证了所提改进调节结构可有效提升光学支撑镜架结构的稳定性。

Abstract

The stability of laser output power and beam pointing stability of the long optical path transmission in high-power laser devices have strict requirements, which puts high requirements on the stability of support mirror mount to maintain the position of the optical components. In order to maintain the beam collimation, the support structure must take into account both adjustability and structure stability, whereas adjustability will introduce instability. This paper proposed a structural improvement design for the commonly used adjustment structure in adjustable support mirror mount. By adding a precise sliding fit which plays a guiding role alone, the function decoupling of the thread matching of the guide and transmission coupling in the traditional adjusting structure is realized, which reduces the influence of large radial clearance on the guiding accuracy in the screw fit, improves the stability of the mirror mount, and builds a stability comparison test device. This device can be used to test the stability of different optical mirror mounts in the same optical path. Experimental results show that the improved adjustment structure could improve the stability of the overall support mount.

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中图分类号:TN243

DOI:10.3788/CJL202047.1001002

所属栏目:激光器件与激光物理

基金项目:国家自然科学基金、中国科学院科研仪器设备研制项目、上海市“科技创新行动计划”项目、中以超短脉冲激光等离子体物理联合研究项目;

收稿日期:2020-04-01

修改稿日期:2020-05-07

网络出版日期:2020-10-01

作者单位    点击查看

张朝:中国科学院上海光学精密机械研究所高功率激光物理重点实验室, 上海 201800中国科学院中国工程物理研究院高功率激光物理联合实验室, 上海 201800中国科学院大学, 北京 100049
汤更秀:中国科学院上海光学精密机械研究所高功率激光物理重点实验室, 上海 201800中国科学院中国工程物理研究院高功率激光物理联合实验室, 上海 201800
刘志刚:中国科学院上海光学精密机械研究所高功率激光物理重点实验室, 上海 201800中国科学院中国工程物理研究院高功率激光物理联合实验室, 上海 201800
庞向阳:中国科学院上海光学精密机械研究所高功率激光物理重点实验室, 上海 201800中国科学院中国工程物理研究院高功率激光物理联合实验室, 上海 201800
张臻:中国科学院上海光学精密机械研究所高功率激光物理重点实验室, 上海 201800中国科学院中国工程物理研究院高功率激光物理联合实验室, 上海 201800
朱健强:中国科学院上海光学精密机械研究所高功率激光物理重点实验室, 上海 201800中国科学院中国工程物理研究院高功率激光物理联合实验室, 上海 201800

联系人作者:朱健强(jqzhu@mail.shcnc.ac.cn)

备注:国家自然科学基金、中国科学院科研仪器设备研制项目、上海市“科技创新行动计划”项目、中以超短脉冲激光等离子体物理联合研究项目;

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引用该论文

Zhang Chao,Tang Gengxiu,Liu Zhigang,Pang Xiangyang,Zhang Zhen,Zhu Jianqiang. Structural Stability of Adjustable Support Mirror Mount in Laser System[J]. Chinese Journal of Lasers, 2020, 47(10): 1001002

张朝,汤更秀,刘志刚,庞向阳,张臻,朱健强. 激光系统中可调节支撑镜架的结构稳定性研究[J]. 中国激光, 2020, 47(10): 1001002

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