Frequency-multiplexing photon-counting multi-beam LiDAR

论文摘要

We report a frequency-multiplexing method for multi-beam photon-counting light detection and ranging（Li DAR）, where only one single-pixel single-photon detector is employed to simultaneously detect the multibeam echoes. In this frequency-multiplexing multi-beam Li DAR, each beam is from an independent laser source with different repetition rates and independent phases. As a result, the photon counts from different beams could be discriminated from each other due to the strong correlation between the laser pulses and their respective echo photons. A 16-beam Li DAR system was demonstrated in three-dimensional laser imaging with 16 pulsed laser diodes at 850 nm and one single-photon detector based on a Si-avalanche photodiode. This frequencymultiplexing method can greatly reduce the number of single-photon detectors in multi-beam Li DAR systems,which may be useful for low-cost and eye-safe Li DAR applications.

论文目录

文章来源

类型: 期刊论文

作者: TIANXIANG ZHENG,GUANGYUE SHEN,ZHAOHUI LI,LEI YANG,HAIYAN ZHANG,E WU,GUANG WU

来源: Photonics Research 2019年12期

年度: 2019

分类: 基础科学

专业: 物理学

单位: State Key Laboratory of Precision Spectroscopy, East China Normal University,Collaborative Innovation Center of Extreme Optics, Shanxi University

基金: National Natural Science Foundation of China(11621404,11774095,11804099),Shanghai Basic Research Project(18JC1412200),Program of Introducing Talents of Discipline to Universities(B12024)

分类号: O572.212

页码: 1381-1385

总页数: 5

文件大小: 1175K

下载量: 21

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