Micro-pulse upconversion Doppler lidar for wind and visibility detection in the atmospheric boundary layer
Micro-pulse upconversion Doppler lidar for wind and visibility detection in the atmospheric boundary layer
复制标题
用于大气边界层风和能见度探测的微脉冲上转换多普勒激光雷达
DOI：
10.1364/ol.41.005218
复制
发表时间：
2016-11-15
期刊：
影响因子：
3.6
通讯作者：
Pan, Jianwei
中科院分区：
文献类型：
--
作者：
Xia, Haiyun;Shangguan, Mingjia;Pan, Jianwei
第一次，据我们所知，一个紧凑的，眼睛安全的，多功能的直接检测多普勒激光雷达的开发使用上转换单光子探测方法在1.5 μ m。实现了全光纤保偏结构，保证了高的光耦合效率和鲁棒稳定性。利用集成光学器件，通过制作光纤耦合的周期性极化铌酸锂波导和全光纤法布里-珀罗干涉仪（FPI），实现了光接收机的集光率守恒。双边沿技术是通过使用一个转换单通道FPI和一个上变频检测器，结合时分复用方法来实现的。在1548.1 nm处的反向散射光子通过与在1950 nm处的泵浦激光混合而被转换成863 nm。该系统在9周内的相对误差小于0.1%。在实验中，大气风和能见度超过48小时的边界层检测。激光雷达与超声波风传感器显示出良好的一致性，速度标准差为1.04 m/s，方向标准差为12.3度。(C)2016美国光学学会
For the first time, to the best of our knowledge, a compact, eye-safe, and versatile direct detection Doppler lidar is developed using an upconversion single-photon detection method at 1.5 mu m. An all-fiber and polarization maintaining architecture is realized to guarantee the high optical coupling efficiency and the robust stability. Using integrated-optic components, the conservation of etendue of the optical receiver is achieved by manufacturing a fiber-coupled periodically poled lithium niobate waveguide and an all-fiber Fabry-Perot interferometer (FPI). The double-edge technique is implemented by using a convert single-channel FPI and a single upconversion detector, incorporating a time-division multiplexing method. The backscatter photons at 1548.1 nm are converted into 863 nm via mixing with a pump laser at 1950 nm. The relative error of the system is less than 0.1% over nine weeks. In experiments, atmospheric wind and visibility over 48 h are detected in the boundary layer. The lidar shows good agreement with the ultrasonic wind sensor, with a standard deviation of 1.04 m/s in speed and 12.3 degrees in direction. (C) 2016 Optical Society of America