基于星载双波长偏振探测的大气探测激光雷达系统设计

To obtain atmospheric profile of the whole world, and solve the problem that environment monitor was always restricted to a certain area, a space-borne atmospheric detection lidar was designed. This lidar working on satellite uses a 532 nm and 1 064 nm dual-wavelength laser combined with polarization detection method to obtain profile,particle size,particle shape of aerosol and cloud,and can research the requirement of three-dimensional spatial distribution detection of clouds and aerosols around the world which will improve atmospheric monitoring system. The space-borne atmospheric detection lidar used ultra-stable laser resonator to get 110 mj laser output, and used space-borne plane etalon to get 40 pm filter bandwidth,and used high-precision pointing controller that pointing accuracy of laser beam was less than 5 jurad. Finally,the paper gives test data of atmospheric vertical profiles under 15 km attitude obtained by a space-borne atmospheric detection lidar which shows dominant position of the lidar on atmospheric detection.