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大口径反射镜低应力夹持技术

郑胜亨 马文静 杨英 曹庭分 陈晓娟 郭雨源 廖予祯 张鑫 韩伟 邓学伟 胡东霞

郑胜亨, 马文静, 杨英, 等. 大口径反射镜低应力夹持技术[J]. 强激光与粒子束, 2021, 33: 091002. doi: 10.11884/HPLPB202133.210176
引用本文: 郑胜亨, 马文静, 杨英, 等. 大口径反射镜低应力夹持技术[J]. 强激光与粒子束, 2021, 33: 091002. doi: 10.11884/HPLPB202133.210176
Zheng Shengheng, Ma Wenjing, Yang Ying, et al. Low-stress mounting technology of large aperture mirror[J]. High Power Laser and Particle Beams, 2021, 33: 091002. doi: 10.11884/HPLPB202133.210176
Citation: Zheng Shengheng, Ma Wenjing, Yang Ying, et al. Low-stress mounting technology of large aperture mirror[J]. High Power Laser and Particle Beams, 2021, 33: 091002. doi: 10.11884/HPLPB202133.210176

大口径反射镜低应力夹持技术

doi: 10.11884/HPLPB202133.210176
详细信息
    作者简介:

    郑胜亨,zhenshenhen@126.com

    通讯作者:

    杨 英,whbms4353@163.com

  • 中图分类号: TH242

Low-stress mounting technology of large aperture mirror

  • 摘要: 高功率固体激光装置对大口径反射镜附加波前畸变和姿态稳定提出了苛刻的要求,在确保姿态稳定性的同时,要求低应力夹持使附加波前畸变峰谷值(PV值)<λ/3, 波长λ=633 nm。提出了一种正面三点支撑结合侧面八点限位的大口径反射镜夹持技术,对该夹持结构下引起的附加波前畸变进行了仿真和实验研究,并对反射镜姿态稳定性进行了不同工况下的实验模拟。结果表明,该夹持方式引入的附加波前畸变PV值约为23.6 nm,振动、晃动、翻转不同工况下反射镜指向变化PV值小于50 μrad,附加波前畸变和姿态稳定性均满足高功率激光装置的要求。
  • 图  1  大口径反射镜夹持结构

    Figure  1.  Mounting structure of large-aperture mirror

    图  2  有限元模拟的边界条件

    Figure  2.  Boundary condition of finite element simulation

    图  3  反射镜面形仿真结果

    Figure  3.  Simulation results of mirror surface

    图  4  装配后的试验对象

    Figure  4.  Test object after assembly

    图  5  红外干涉仪检测平台

    Figure  5.  Infrared interferometer testing platform

    图  6  夹持姿态稳定性试验光路

    Figure  6.  Optical path of mounting attitude stability

    图  7  反射镜面形测试结果

    Figure  7.  Test result of mirror surface

    图  8  反射镜姿态稳定性试验结果

    Figure  8.  Test result of mirror attitude stability

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出版历程
  • 收稿日期:  2020-05-10
  • 修回日期:  2020-07-13
  • 网络出版日期:  2021-07-23
  • 刊出日期:  2021-09-15

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