Comparison of laser ranging system based on SNSPD and SPAD detectors

doi:10.11972/j.issn.1001-9014.2018.03.019

	Comparison of laser ranging system based on SNSPD and SPAD detectors
	Zhang Xiao-Ying 2; Jia Lei 2; Zhu Jiang 1; Yan Xia-Chao 1; Zhang La-Bao 1; Fang Lin 1; Wu Pei-Heng 1
刊名	JOURNAL OF INFRARED AND MILLIMETER WAVES
	2018-06
卷号	37 期号:3 页码:378-384
关键词	superconducting nanowire single photon detector laser ranging photon counting dark count skylight background
ISSN号	1001-9014
DOI	10.11972/j.issn.1001-9014.2018.03.019
英文摘要	The laser ranging systems based on SNSPD and SPAD detectors are compared by experiments. In the experiments, the sky light background can be ignored when the receive echo is attenuated to 120 dB, the detection probability of SPAD is less than 0. 2%, while the detection probability of SNSPD is 35%. When the laser emission frequency is below 1 kHz, the detection probability of SNSPD is more than 60% higher than that of SPAD. The study shows that the detection performance of SNSPD is much better than that of SPAD when detecting the weak signal echo photons. The reason is that SNSPD has lower dark counts and higher detection probability. At the same time, with no attenuation at the receiving end, the sky light background will bring dark counts, affecting the signal-to-noise ratio of the ranging system. Simulation analysis shows that the signal-to-noise ratio of the SNSPD-based laser ranging system is lower than 6 when the background luminance is higher than 30 W/(m(2) center dot sr), which may affect the stability detection of the laser ranging system.
资助项目	National Natural Science Foundation of China[11227904] ; National Natural Science Foundation of China[61471189] ; National Natural Science Foundation of China[61571217] ; National Natural Science Foundation of China[61521001]
WOS研究方向	Optics
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000448282400019
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32625]
专题	电气工程与信息工程学院
通讯作者	Zhang Xiao-Ying; Zhang La-Bao
作者单位	1.Nanjing Univ, Superconducting Elect Res Inst, Nanjing 210093, Jiangsu, Peoples R China 2.Lanzhou Univ Technol, Sch Elect & Informat Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang Xiao-Ying,Jia Lei,Zhu Jiang,et al. Comparison of laser ranging system based on SNSPD and SPAD detectors[J]. JOURNAL OF INFRARED AND MILLIMETER WAVES,2018,37(3):378-384.
APA	Zhang Xiao-Ying.,Jia Lei.,Zhu Jiang.,Yan Xia-Chao.,Zhang La-Bao.,...&Wu Pei-Heng.(2018).Comparison of laser ranging system based on SNSPD and SPAD detectors.JOURNAL OF INFRARED AND MILLIMETER WAVES,37(3),378-384.
MLA	Zhang Xiao-Ying,et al."Comparison of laser ranging system based on SNSPD and SPAD detectors".JOURNAL OF INFRARED AND MILLIMETER WAVES 37.3(2018):378-384.