ZHENG Tian-xiang,SHENGuang-yue,LIZhao-hui,WU E,CHEN Xiu-liang,WUGuang.Single-photon imaging system with a fiber optic taper[J].Optoelectronics Letters,2018,14(4):267-270
Single-photon imaging system with a fiber optic taper
Author NameAffiliation
ZHENG Tian-xiang State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China 
SHENGuang-yue State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China 
LIZhao-hui State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China 
WU E State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China 
CHEN Xiu-liang State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China 
WUGuang State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China 
Abstract:
      We report a time-of-flight photon-counting imaging system in conjunction with a single-photon detector mounted with a fiber optic taper, which equivalently enlarges the active area of the single-photon detector by 100 times. The field of view of the imaging system is extended from ±0.57° to ±7° by using the fiber optic taper to collect the scattered photons. Since only a single avalanche photodiode is used, the noise level of the system is maintained at a low level. We demonstrate the scanning of the targets at a stand-off distance of 28 m with a centimeter depth resolution.
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