单光子飞行时间峰值扫描测量系统精度研究  

Research on scanning measurement precision of flight time peak value for single photon

作　　者：曾智龙[1] 朱勇[1] 卢麟[1] 张宝富[1] 吴传信[1] 韦毅梅[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《光电子．激光》2015年第7期1322-1327,共6页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61174199;61371121)资助项目

摘　　要：提出一种单光子飞行时间峰值扫描测量方案,介绍了峰值扫描测量的工作原理。依据光子计数过程,建立了发光脉冲次数、门控信号扫描步长及光纤长度与光子计数曲线关系的数学模型,分析了给定门控信号宽度和时延扫描步长、光子计数率曲线峰值判断正确的概率与发光脉冲之间的关系。在50km光纤上,对理论分析结果进行了实验验证。We propose a new scheme named peak count rate scanning measurement to measure the time of flight by scanning peak count rate with single photon detection and introduce the operating principle of the scheme.We set up the mathematical model among the number of optical pulses,the scanning step of gate signal and the length of optical fiber according to the process of photon counting.We analyze the relationship between the correct probability of peak count rate and optical pulses under given gate signal pulses and scanning step and the result of theoretical analysis is verified with experimental confirmation using a 50 km optical fiber.

关 键 词：峰值扫描 单光子探测 门模式 

分 类 号：TN29[电子电信—物理电子学]