Multi-channel pseudo-random coding single-photon ranging and imaging

被引：11

作者：

Wu, Di ^{[1
]}

Yang, Lei ^{[1
]}

Chen, Xiuliang ^{[1
]}

Li, Zhaohui ^{[1
]}

Wu, Guang ^{[1
,2
]}

机构：

[1] East China Normal Univ, State Key Lab Precis Spect, Shanghai 200241, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2022年 / 20卷 / 02期

基金：

中国国家自然科学基金;

关键词：

single-photon detection; pseudo-random modulation; laser ranging; LIDAR;

D O I：

10.3788/COL202220.021202

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a multi-channel pseudo-random coding single-photon ranging system. A pseudo-random multiplexing technique is proposed, which realizes multi-channel pseudo-random ranging only by using one single-photon detector and processing circuit. Compared with the time division multiplexing technique, it will not reduce the maximum unambiguous range while increasing the number of the ranging channel. Eight-channel pseudo-random coding single-photon ranging was realized with the ranging accuracy better than 2 cm. Moreover, photon counting imaging was realized through scanning the laser beams of the eight-channel pseudo-random ranging system. There is no crosstalk between channels, which is suitable for multi-beam long-distance single-photon Lidar.

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页数：6

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