Space laser communication vibration compensation system based on liquid crystal light modulator

作者：Ni Xiaolong; Liu Zhi; Jiang Huilin^*; Liu Dan; Kong Yue

来源：Chinese Journal of Lasers, 2013, 40(SUPPL).

DOI：10.3788/CJL201340.s105007

• Compensation method
• Inter-satellite laser communications
• Liquid crystal spatial light modulators
• Low-power consumption
• Platform vibrations
• Satellite platforms
• Space laser communication
• Vibration compensation

In order to compensate the influence on the inter-satellite laser communication system caused by the vibration of the satellite platform, a space-borne platform vibration compensation system is designed and constructed based on the reflection liquid crystal light modulator. Compared with the traditional vibration compensation system, it has the advantages of non-mechanical structure, high pointing accuracy, small volume, light weight, low power consumption and compensation for the higher-order aberration, so that many problems of the traditional compensation method can be overcome. As shown in the experimental results, the compensation factor is better than 0.8, and the residual error is less than 2 μ rad when the frequency of angular vibration ranges from 10~100 Hz and the amplitude is lower than 10 μ rad, which meet the high dynamic accuracy demands of inter-satellite laser communication system.

• 出版日期2013