The Effect of Temperature Gradient on the Optical Telescope System in Laser Communication
The optical telescope system that can transmit and receive laser signal is the core component of a satellite laser communication terminal. The stability of its various components in the space environment under the temperature has a significant impact on the laser communication rate, error rate, aiming accuracy and system transmission. Optical telescope in space conditions is subject to space thermal radiation and the heat conduction and thermal radiation from the relevant electrical devices, especially laser communications source (semiconductor laser power with 1-10w) in the dissemination of its own reflection. The heat absorption of the secondary mirror and its support holder results in the temperature increase on secondary mirror parts and the temperature gradient between primary and secondary mirror. In this paper, we simulated the surface accuracy of optical components and their spatial variation under the temperature gradient through finite element analysis of the optical telescope system. The simulation results have been applied to guide the implementation of the thermal control system for effectively controlling of the optical performance of optical telescope system and to meet the need of laser communications.
Zhongyu Zhang
Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
国际会议
1st International Conference on Frontiers of Laser Processing(第一届激光加工前沿国际会议 ICFL 2011)
长春
英文
183-184
2011-07-11（万方平台首次上网日期，不代表论文的发表时间）