中国光学（中英文）2026，Vol.19Issue(3)：544-557,14.DOI:10.37188/CO.2025-0145
宽带可重构单光子激光通信发收关键技术研究
Key technologies of broadband reconfigurable single-photon laser communication transceivers
摘要
Abstract
Single-photon detectors(SPDs)exhibit high sensitivity and strong anti-interference capability,and are often integrated with the traditional pulse position modulation(PPM)technique for long-distance laser communication.However,this integration suffers from low communication rates.To address the rate per-formance limitations of PPM modulation,a broadband reconfigurable pulse sampling data transmission scheme based on single-photon detectors is proposed.In addition,an adaptive pulse-width algorithm tailored to this modulation method is designed to achieve optimal pulse-width selection for the data acquired by single-photon detectors.At the transmitter,the FPGA GTX high-speed transceiver and real-time serial port transceiving are adopted to optimize the transmitted code pattern;at the receiver,a bit error rate(BER)mon-itoring and adaptive algorithm module is developed.Link simulations and adaptive simulations are conduc-ted to evaluate the impacts of actual channel scenarios,and a 1 550 nm single-photon detection experimental system is built for validation.Experimental results show that this modulation scheme enables single-photon laser communication with a rate range from kbps to Mbps.Meanwhile,preliminary tests based on avalanche photodiodes(APDs)demonstrate the feasibility of Gbps-level high-speed communication using this scheme.At the kbps and Mbps rate levels,compared with the default pulse width,the adaptive pulse-width modula-tion algorithm reduces the communication BER by one and two orders of magnitude,respectively.In com-parison with traditional single-photon laser communication systems,this modulation scheme supports wide-rate-range adjustment from kbps to Gbps and optimal pulse-width selection at kbps-Mbps rates,thus provid-ing a novel solution for single-photon detection devices based on different technical routes.关键词
激光通信/FPGA/GTX/单光子探测器/脉宽自适应/宽带可重构/脉冲采样Key words
laser communication/FPGA/GTX/single photon detector/pulse width adaptive/broadband re-configurable/pulse sampling分类
信息技术与安全科学引用本文复制引用
高子怡,盛亚培,董娇,林鹏,徐立,于笑楠,董科研..宽带可重构单光子激光通信发收关键技术研究[J].中国光学（中英文）,2026,19(3):544-557,14.基金项目
国家重点研发计划(No.2021YFA0718804) （No.2021YFA0718804）
吉林省科技发展计划项目(No.YDZJ202401608ZYTS)Supported by the National Key Research and Development Program(No.2021YFA0718804) （No.YDZJ202401608ZYTS）
Science and Technology Development Project of Jilin Province,China(No.YDZJ202401608ZYTS) （No.YDZJ202401608ZYTS）
