基于双驱马赫-曾德尔调制器的加密调制一体化系统  

Encryption-Modulation Integrated System Based on Dual-Drive MachZehnder Modulator

作　　者：闫焕友 唐先锋[1] 朱海龙 王红艳 房博海 申晨雨 刘芝付 詹鹏 张晓光[1] Yan Huanyou;Tang Xianfeng;Zhu Hailong;Wang Hongyan;Fang Bohai;Shen Chenyu;Liu Zhifu;Zhan Peng;Zhang Xiaoguang(State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876,China;Anhui Jiyuan Software Co.Ltd.,State Grid Information&Telecommunication Group,Hefei 230088,Anhui,China;Information and Communication Branch of Hubei Electric Power Company,State Grid,Wuhan 430000,Hubei,China)

机构地区：[1]北京邮电大学信息光子学与光通信国家重点实验室,北京100876 [2]国网信息通信产业集团安徽继远软件有限公司,安徽合肥230088 [3]国网湖北省电力有限公司信息通信公司,湖北武汉430000

出　　处：《光学学报》2022年第14期47-51,共5页Acta Optica Sinica

基　　金：国家自然科学基金(62001040);国家电网有限公司总部科技项目资助(5700-202119188A-0-0-00);北京邮电大学信息光子学与光通信国家重点实验室基金资助(IPOC2021ZT12);北京邮电大学大学生研究创新基金。

摘　　要：为提高光通信系统的物理层安全性能,设计并实现了一种基于双驱马赫-曾德尔调制器的加密调制一体化方案,该方案利用双驱马赫-曾德尔调制器中的矢量调制机制对明文和密钥在光域中进行异或加密操作,同时实现了加密和调制的功能复用。阐述了所提方案的基本工作原理和提升加密信号消光比的优化过程,并基于所提方案成功研制了加密调制一体化发射样机。实验结果表明,所提方案可以对传输速度为32 Gb/s的信号实现调制和加密,且信号消光比高达13.2 dB。仿真结果表明,在不同传输距离下,所提方案的接收信号消光比相比普通通断键控(OOK)系统有明显的提升。To improve the physical layer security of the optical communication system,an encryption-modulation integrated scheme based on the dual-drive Mach-Zehnder modulator(DD-MZM)is proposed.In this scheme,the XOR encryption operation is realized between plaintext and key in the optical domain on the basis of the vector modulation mechanism in the DD-MZM,and the function reuse of encryption and modulation is achieved.The basic working principle of the proposed scheme and the optimization process of improving the extinction ratio of encrypted signals are described,and the prototype of an encryption-modulation integrated transmitter is successfully developed based on this scheme.The experimental results reveal that the modulation and encryption of signals with a transmission speed of 32 Gb/s can be successfully realized by this scheme,and the signal extinction ratio is as high as 13.2 dB.In addition,simulation analysis indicates that compared with the common on-off keying(OOK)system,the proposed system has a better extinction ratio for its received signals.

关 键 词：光通信 信息安全传输 加密调制一体化 双驱马赫-曾德尔调制器 异或逻辑门加密 高消光比 

分 类 号：TN918.61[电子电信—通信与信息系统]