Advertisement

Optoelectronics Letters

, Volume 1, Issue 3, pp 209–212 | Cite as

Numerical analysis of thermal distortion of the mirror in space-to-ground laser communication links

  • Li Xiao-feng 
  • Zhang Bai-lei 
  • Lin Mi 
  • Qi Li-mei 
Measurement · Inspection
  • 37 Downloads

Abstract

The thermal distortion of an optical reflector surface due to the changing sunlight in a space environment will cause shift and spreading of its reflected focus and thereby influence the performance of space-to-ground laser communication links. Based on the characteristics of a low orbit satellite, the normal shift of a plan mirror caused by thermal distortion is analyzed with the software of the ANSYS of finite element analysis. A general expression of the transmitted beam from a distorted reflector surface and a counting formula for the shifts of the focus center before and after thermal distortion are deduced. The result of simulation shows that the magnitude order of the normal shift of the antenna miror surface can be as high as tens of μrad. The worse the mirror thermal distortion is, the larger the shift of the received focus center is. And the change of the shifts does not obey a linear rule.

CLC number

TN929.1 

Document code

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Zhang Lihua,Chinese space science and technology,1, (1999), 32.Google Scholar
  2. [2]
    Li Xiaofeng,J. of Optoelectronics. Laser,16 (2005).Google Scholar
  3. [3]
    Li Xiaofeng,High power laser and particle beams,17 (2005), 369.Google Scholar

Copyright information

© Tianjin University of Technology 2005

Authors and Affiliations

  • Li Xiao-feng 
    • 1
  • Zhang Bai-lei 
    • 1
  • Lin Mi 
    • 1
  • Qi Li-mei 
    • 1
  1. 1.Institute of Physical ElectronicsUESTC of ChinaChengduChina

Personalised recommendations