Long-range micro-pulse aerosol lidar at 1.5  μm with an upconversion single-photon detector

Date: 2015-03-27
Authors Haiyun Xia, Guoliang Shentu, Mingjia Shangguan, Xiuxiu Xia, Xiaodong Jia, Chong Wang, Jun Zhang, Jason S. Pelc, M. M. Fejer, Qiang Zhang, Xiankang Dou, and Jian-Wei Pan
Journal No. Optics Letters 40, 1579-1582 (2015)
Abstract 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.