Laser communication based on a multi-channel single-photon detector

被引：10

作者：

Du, Bingcheng ^{[1
]}

Wang, Yong ^{[1
]}

Wu, E. ^{[1
]}

Chen, Xiuliang ^{[1
]}

Wu, Guang ^{[1
,2
]}

机构：

[1] East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

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

来源：

OPTICS COMMUNICATIONS | 2018年 / 426卷

基金：

中国国家自然科学基金;

关键词：

Laser communication; Single-photon detection; Photon-number-resolving detector; SPACE OPTICAL COMMUNICATION;

D O I：

10.1016/j.optcom.2018.05.039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a free-space laser communication system with a multi-channel single-photon detector to improve the efficiency of transmission. On account of the photon-number-resolving capability, the discrimination level is adjustable to optimize the extraction of effective signals from the background noise. This method greatly reduces the error bit rate even under the high intensity of the background noise of 6x10(6) counts/s in daylight. Meanwhile, combined with the pulse position modulation, the bandwidth of the laser communication system can be improved greatly. This study paves the way to the high accuracy and high speed free-space optical communication for 24 h a day.

引用

页码：89 / 93

页数：5

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