High power TEA CO2 laser with two wavelength free shift output structure

SHAO Chun-lei; SONG Xiao-feng; ZHANG Lai-ming; XIE Ji-jiang; GUO Jin

doi:10.3788/OPE.20111902.0429

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High power TEA CO₂ laser with two wavelength free shift output structure

Article | 更新时间：2020-08-12

- High power TEA CO₂ laser with two wavelength free shift output structure
- Optics and Precision Engineering Vol. 19, Issue 2, Pages: 429-436(2011)
- 作者机构：
  
  1. 中国科学院研究生院北京,100039
  2. 中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111902.0429
  CLC： TN248.22
- Received：08 October 2010，
  
  Revised：30 October 2010，
  
  Published Online：22 February 2011，
  
  Published：22 February 2011
- 稿件说明：
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邵春雷, 宋晓峰, 张来明, 谢冀江, 郭劲. 高功率TEA CO2激光器的双波长免调切换结构[J]. 光学精密工程, 2011,19(2): 429-436

SHAO Chun-lei, SONG Xiao-feng, ZHANG Lai-ming, XIE Ji-jiang, GUO Jin. High power TEA CO2 laser with two wavelength free shift output structure[J]. Editorial Office of Optics and Precision Engineering, 2011,19(2): 429-436
邵春雷, 宋晓峰, 张来明, 谢冀江, 郭劲. 高功率TEA CO2激光器的双波长免调切换结构[J]. 光学精密工程, 2011,19(2): 429-436 DOI： 10.3788/OPE.20111902.0429.

SHAO Chun-lei, SONG Xiao-feng, ZHANG Lai-ming, XIE Ji-jiang, GUO Jin. High power TEA CO2 laser with two wavelength free shift output structure[J]. Editorial Office of Optics and Precision Engineering, 2011,19(2): 429-436 DOI： 10.3788/OPE.20111902.0429.

摘要

为在一台激光器上切换输出10.6/9.3 m两种波长高能激光

采用输出镜镀膜选支方法获得了9.3 m单谱线输出

其脉冲能量与原10.6 m波长基本相当。设计出双波长密闭免调切换输出结构

利用有限元分析软件MSC.Patran/Nastran对该结构的切换移动平台组件进行了静力学、热应力及热力耦合分析

并基于Matlab软件

运用最小二乘法对分析得到的位移变形量拟合出输出镜镜面绕坐标轴的偏转角度。分析计算得到结构的最大应力为101 MPa

镜面的最大变形量为6.95 m

镜面绕3个坐标轴的倾斜角度分别为0.07

2.92

0.009。对研制出的实物装置进行发射试验

检测到两波长切换发射的指向性相对误差为8.7。结果表明

该结构能够满足免调切换输出两种波长激光的性能参数要求。

Abstract

To realize 10.6/9.3 m two-wavelength high energy laser switching output on one laser

a coating on output mirror was taken to obtain a 9.3 m singlet output whose pulse energy was roughly equal to 10.6 m.A two-wavelength window switching device with free shift out strucutres was designed.The statics analysis

thermal-stress analysis and the thermal-stress coupling analysis were used in the switching shift flat to get the displacement deformation by MSC.Patran/Nastran software

then the least square method was taken to get the output mirror deflection angle around the axis by Matlab software. The results indicate that the maximum stress of structure is 101 MPa

the maximum deformation of mirror is 6.95 m

and the mirror deflection angles around the axis are 0.07

2.92 and 0.009

respectively.A emission experiment for the physical device was performed

which shows that the directional relative error of two wavelength shift emission is 8.7.The results mean that the structure can satisfy the requirements of the free shift output of two wavelength lasers for capabilities and parameters.

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references

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