Novel beam orienting mechanism using beam nutating and coherent detecting technologies

摘要

High data rate of inter-satellite optical communication systems should be matched by high performance of beam orienting. A novel beam orienting mechanism utilizing no CCD or quadrant detectors is presented. High-precision and extreme-sensitivity beam orienting can be achieved by the application of beam nutating and coherent detecting technologies. Mathematical and computer simulation model of the entire orienting system is developed. The computer simulation results show that high beam orienting precision provided low laser phase noises are maintained. Preliminary experiments have verified the feasibility of using this technology for beam orienting.