摘要
针对实际QKD系统应用,本文总结了量子密钥分发系统中所使用的相位调制器、波长选择开关等基础器件特性的研究。以双M-Z型QKD系统为例,提出了利用相位调制器进行相位实时跟踪补偿的系统模型,利用SPDM功能模块技术,提出以单光子探测光子统计计数表征干涉相位漂移的实时检测与补偿方法;采用WSS技术弹性管理波长,解决QKD系统接入网多波长复用技术难题;总结提出的基于DD-OFDM系统无源光器件特性测试方案,监测量子通信与经典通信融合接入网,改善系统稳定性,这对于量子通信实用化和产业化发展有重要意义。
In lighi of practical QKD system application, phase modulator WSS （ Wavelength Stalere Switch） , and other basic deviccs in quantum key distribution system are discussed. Faking double M-Z QKD system as an example, the system model of phase real-lime lrackillg cnmpensalion based on phase modulator is proposed. Then, real-lime delelion and pholon counling statistics from single photon deletion is also presentted via the technology of SPDM funclinn module. Moreover, WSS technology is adopted to flexibly manage the wavelength, thus solving the technical problem of QKD system AN （Access Network） muhi-wawdength muhiplexing. Tesling scheme for passive optical device charaleristits based on DD-OFDM system is proposed, thus to monitor quantum communication and classical communication fusion AN, and improve system stability. And Ibis is of great significance for quantum communication application and induslrializationdevelopment.
出处
《信息安全与通信保密》
2015年第7期74-80,共7页
Information Security and Communications Privacy
基金
"十二五"国家密码发展基金密码理论课题研究项目(No.MMJJ201401011)
广东省省部产学研引导项目(No.2012B091100063)
广州市科技计划项目科学研究专项(No.2014J4100050)
广州市科技计划项目孵化器建设和公共平台建设专项(No.2013J4500095)资助的课题
关键词
QKD系统
量子通信与经典通信
量子信息与网络融合
波长复用
跟踪补偿
QKD system
quantunl communication and classical communication
quantunl infirmation and network filsion
wave-lenglh muhiplexing
tracking compensation
