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18 November 2014 Study on laser communication system based on the structure of rotating paraboloid joining
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With the urgent need for the development of high data rate transmission of information and high-resolution observation techniques, research on high-speed laser communications networking technologies is imminent. This article analyzes the basic requirements of space laser communication links and the technical difficulties and achieve in the network need to be solved. The optical principle of the networking were proposed, studied technical solutions of a laser can be used for communication between multiple targets simultaneously, designed with the rotating parabolic antenna to the base of the optical multi-mirror stitching structure, as well as transmitting and receiving relay optical system with APT system, a new technical approach was provided for the space laser communication link Networking. According to the parabolic features, for the incident light firing at the direction of focus, the reflected light is parallel to the optical axis. But the energy efficiency is low for this type of surfaces, only small portion of the energy can be received. So it is designed to form the multi-mirror mosaic structure with parabolic base. The normal of each mirror is perpendicular to the tangent of the paraboloid. The size, shape, number and the combination way of mirrors are designed and optimized according to the orbit position and number. Each mirror is controlled to perform the movement in the horizontal and azimuth directions, in this way the antenna has certain stability and light deflection. With this antenna, communication can be realized for objects in different orientations at the same time for 360° in horizontal direction and big field of view in azimuth direction.Finally, it prospected the application foreground.
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Qiang Fu, Huilin Jiang, Lizhong Zhang, Yuan Hu, and Yansong Song "Study on laser communication system based on the structure of rotating paraboloid joining", Proc. SPIE 9298, International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics, 92981R (18 November 2014);


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