Optical system design of monostatic nonscanning Doppler wind lidar

The optical system is a key factor for a wind lidar system miniaturization, and the quality of the optical design directly affects the whole performance of the lidar system. A system configuration for all fiber non scanning Doppler wind lidar is presented, and its working principle is briefly introduced. The optical system simulation and design are given. The system working at 1 064 nm wavelength. Design results show that the relative diameter is 1∶4.28, the whole field of view angle is 2022.5, the total length is 277 mm, the back work distance is 127.28 mm, the effective focal length is 300 mm, the diameter of optical system is 70 mm, and each field of optical fiber coupling efficiency is over 65%. the parameters meet the design requirements.