量子电子学报2025，Vol.42Issue(5)：686-693,8.DOI:10.3969/j.issn.1007-5461.2025.05.010
量子光源的相位随机化检测装置
Phase randomization detection device for photon source
摘要
Abstract
Quantum key distribution(QKD)is an important technology to ensure information security and resist quantum computing attacks.However,the imperfections of realistic devices pose security risks to QKD system.Aiming at the security issues of phase randomization of photon source in actual QKD system,this paper proposes a phase randomization detection method based on asymmetric Faraday-Sagnac-Michelson interferometer(AFSMI).The phase correlation factor is tested for two high-speed laser modules,and final security key rate is corrected according to phase correlation factor,effectively improving practical security of QKD when there is phase correlation of photon source.关键词
量子信息/量子密钥分发/相位随机化检测/不等臂法拉第-萨尼亚克-迈克尔逊干涉仪/量子光源/安全性Key words
quantum information/quantum key distribution/phase randomization detection/asymmetric Faraday-Sagnac-Michelson interferometer/quantum light source/security分类
数理科学引用本文复制引用
郝鹏磊,韩正甫..量子光源的相位随机化检测装置[J].量子电子学报,2025,42(5):686-693,8.基金项目
科技创新2030-"量子通信与量子计算机"重大项目(2021ZD0300701) （2021ZD0300701）
