Research on large-aperture primary mirror supporting way of vehicle-mounted laser communication system

Lixin Meng; Lingchen Meng; Yiqun Zhang; Lizhong Zhang; Ming Liu; Xiaoming Li

doi:10.1117/12.2296252

10 January 2018 Research on large-aperture primary mirror supporting way of vehicle-mounted laser communication system

Lixin Meng, Lingchen Meng, Yiqun Zhang, Lizhong Zhang, Ming Liu, Xiaoming Li

Proceedings Volume 10605, LIDAR Imaging Detection and Target Recognition 2017; 106050S (2018) https://doi.org/10.1117/12.2296252
Event: LIDAR Imaging Detection and Target Recognition 2017, 2017, Changchun, China

Abstract

In the satellite to earth laser communication link, large-aperture ground laser communication terminals usually are used in order to realize the requirement of high rate and long distance communication and restrain the power fluctuation by atmospheric scintillation. With the increasing of the laser communication terminal caliber, the primary mirror weight should also be increased, and selfweight, thermal deformation and environment will affect the surface accuracy of the primary mirror surface. A high precision vehicular laser communication telescope unit with an effective aperture of 600mm was considered in this paper. The primary mirror is positioned with center hole, which back is supported by 9 floats and the side is supported by a mercury band. The secondary mirror adopts a spherical adjusting mechanism. Through simulation analysis, the system wave difference is better than λ/20 when the primary mirror is in different dip angle, which meets the requirements of laser communication.

Citation Download Citation

Lixin Meng, Lingchen Meng, Yiqun Zhang, Lizhong Zhang, Ming Liu, and Xiaoming Li "Research on large-aperture primary mirror supporting way of vehicle-mounted laser communication system", Proc. SPIE 10605, LIDAR Imaging Detection and Target Recognition 2017, 106050S (10 January 2018); https://doi.org/10.1117/12.2296252

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