光电子快报(英文版), 2018, 14 (2): 129, Published Online: Sep. 17, 2018
Dynamic time-correlated single-photon counting laserranging
Abstract
We demonstrate a photon counting laser ranging experiment with a four-channel single-photon detector (SPD). The multi-channel SPD improve the counting rate more than 4×107 cps, which makes possible for the distance measurement performed even in daylight. However, the time-correlated single-photon counting (TCSPC) technique cannot distill the signal easily while the fast moving targets are submersed in the strong background. We propose a dynamic TCSPC method for fast moving targets measurement by varying coincidence window in real time. In the experiment, we prove that targets with velocity of 5 km/s can be detected according to the method, while the echo rate is 20% with the background counts of more than 1.2×107 cps.
PENG Huan, WANG Yu-rong, MENG Wen-dong, YAN Pei-qin, LI Zhao-hui, LI Chen, PAN Hai-feng, WU Guang. Dynamic time-correlated single-photon counting laserranging[J]. 光电子快报(英文版), 2018, 14(2): 129.