Xia Haiyun, Shentu Guoliang, Shangguan Mingjia, Xia Xiuxiu, Jia Xiaodong, Wang Chong, Zhang Jun, Pelc Jason S, Fejer M M, Zhang Qiang, Dou Xiankang, Pan Jian-Wei
Opt Lett. 2015 Apr 1;40(7):1579-82. doi: 10.1364/OL.40.001579.
A micro-pulse lidar at eye-safe wavelength is constructed based on an upconversion single-photon detector. The ultralow-noise detector enables using integration technique to improve the signal-to-noise ratio of the atmospheric backscattering even at daytime. With pulse energy of 110 μJ, pulse repetition rate of 15 kHz, optical antenna diameter of 100 mm and integration time of 5 min, a horizontal detection range of 7 km is realized. In the demonstration experiment, atmospheric visibility over 24 h is monitored continuously, with results in accordance with the weather forecasts.
基于上转换单光子探测器构建了一种人眼安全波长的微脉冲激光雷达。这种超低噪声探测器能够使用积分技术来提高大气后向散射的信噪比，即使在白天也能实现。在脉冲能量为110 μJ、脉冲重复率为15 kHz、光学天线直径为100 mm以及积分时间为5分钟的条件下，实现了7 km的水平探测范围。在演示实验中，连续监测了24小时的大气能见度，结果与天气预报相符。
