A design of a laser communications optical system with high transmitting and receiving performance is given. Considering the decrease of transmitting power caused by the obscuration of secondary mirror in traditional optical antenna, the eccentric-pupil Cassegrain optical antenna is designed. It improves the efficiency of transmitting power of optical communication terminal effectively. The system only uses one beam steering mirror to perform platform jitter compensation, one detector to perform spatial acquisition and tracking function, and an optical feedback for point-ahead compensation. The reduction in design complexity can lead to reduced system cost and improved system reliability.
© 2013 Optical Society of AmericaPDF Article
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