低成本亚毫米精度单光子测距技术  

Low-Cost Submillimeter-Precision Single-Photon Ranging

作　　者：李舒毅 詹淇 李召辉[1] 吴光[1] Li Shuyi;Zhan Qi;Li Zhaohui;Wu Guang(State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200241,China)

机构地区：[1]华东师范大学精密光谱科学与技术国家重点实验室,上海200241

出　　处：《激光与光电子学进展》2024年第5期267-272,共6页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(2021YFB2801100);国家自然科学基金(11804099,62075062,62175067);上海市教育发展基金会和上海市教育委员会“晨光计划”(21CGA31);华东师范大学幸福之花基金(2021ST2110)。

摘　　要：单光子探测技术具有高灵敏度、低时间抖动、低功耗等独特优势,在激光测距和成像中的应用越来越广泛。基于此,提出一种低成本的高精度单光子测距技术。利用窄脉冲电路驱动激光二极管产生脉宽为160 ps的窄脉冲激光,利用多像素光子计数器研制时间抖动为417 ps的低时间抖动单光子探测器,降低系统的整体时间抖动,并搭建高精度单光子测距实验装置。测距实验结果表明,在2 m的测距量程内,单光子测距系统的距离测量精度可达370μm@RMS。实验装置采用同轴光路设计,结构简单,易于集成,为实现小型化低功耗高精度单光子测距系统提供了一种可行性的解决方案。The single-photon detection technique has unique advantages,such as high sensitivity,low timing jitter,and low power consumption.Thus,its applications in laser ranging and imaging are becoming increasingly widespread.In this paper,we introduce a low-cost high-precision single-photon ranging system,in which a narrow pulse laser generated by the laser diode with a pulse width of 160 ps and a low timing jitter single-photon detector based on a multi-pixel photon counter with a timing jitter of 417 ps are used to reduce the overall timing jitter of the system.The ranging experiment results show that within the 2-meter ranging range,the distance measurement accuracy of the single-photon ranging system could reach 370μ[e-mail] experimental device adopts a coaxial optical path design,with a simple structure and easy integration,providing a feasible solution for achieving a miniaturized,low-power,high-precision single photon ranging system.

关 键 词：激光测距 单光子探测器 亚毫米 光子计数 

分 类 号：TN214[电子电信—物理电子学]