基于DWDM的量子经典融合通信系统噪声处理技术  

Noise processing technology of quantum and classical fusion communication system based on DWDM

作　　者：冉攀 胡敏[1] 郭邦红 RAN Pan;HU Min;GUO Banghong(School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510006,China;College of Computer Science and Software Engineering,Shenzhen University,Shenzhen Guangdong 518060,China)

机构地区：[1]华南师范大学信息光电子科技学院,广州510006 [2]深圳大学计算机与软件学院,广东深圳518060

出　　处：《光通信技术》2020年第8期22-26,共5页Optical Communication Technology

基　　金：国家自然科学基金(61572203)资助;广东省重点领域研发计划(2018B030325002)资助;瞬态光学与光子技术国家重点实验室开放基金(SKLST201602)资助。

摘　　要：为提高系统容量和光纤的利用率,降低网络建设成本,提出了基于密集波分复用(DWDM)技术的量子经典融合通信系统。为消除或降低系统中经典信号对量子信号的影响,设计一种非等间隔波长选取方法和采用光隔离器分别处理融合系统中的四波混频噪声和喇曼散射噪声。仿真结果表明:经过噪声处理后,量子经典融合通信系统中的因四波混频和喇曼散射噪声导致的量子误码率(QBER)下降约33.3%。To improve the system capacity,the utilization rate of optical fiber and reduce the cost of network construction,this paper proposes a quantum and classical fusion communication system based on dense wavelength division multiplexing(DWDM)technology.To eliminate or reduce the impact of classical signal on quantum signal in the system,it designs an unequal wavelength allocation method and an optical isolator are to deal with the four wave mixing noise and Raman scattering noise of the fusion system respectively.The simulation results show that the quantum bit error rate(QBER)of the quantum and classical fusion communication system is reduced by 33.3%due to four wave mixing and Raman scattering noise after noise processing.

关 键 词：量子密钥分发 密集波分复用 量子经典融合通信 四波混频 喇曼散射 

分 类 号：TN256[电子电信—物理电子学]