Chinese Optics Letters, 2008, 6 (1): 0101, Published Online: Jan. 29, 2008
Theoretical analysis and simulation of conjugate heights for dual-conjugate AO system in lidar Download: 550次
自适应光学 大气湍流 激光雷达 多层共轭 共轭高度 等晕角 010.1080 Active or adoptive optics 010.1330 Atmospheric turbulence 010.3640 Lidar
Abstract
A multi-conjugate adaptive optics (MCAO) can offer a possibility of widening field of view (FOV) characterized by the isoplanatic angle, and the choose of conjugate height becomes a basic problem for MCAO, which influences the size of iosplanatic angle. Considering the application of lidar, the isoplanatic angle’s expressions of two deformable mirrors (DMs) MCAO for uplink and downlink are deduced. The effects of conjugate heights for dual-conjugate AO are thoughtfully discussed, and the isoplanatic angles are further analyzed. The results show that the isopanatic angle varies with the conjugate height and reaches the maximum as the conjugate height is at the optimal altitude. Moreover, the optimal conjugate height changes with the propagation distance.
Xueke Ding, Jian Rong, Hong Bai, Xiu Wang, Jin'e Shen, Fang Li. Theoretical analysis and simulation of conjugate heights for dual-conjugate AO system in lidar[J]. Chinese Optics Letters, 2008, 6(1): 0101.