RoF系统中基于双重幅度调制的载波重用技术  

Carrier reuse technology based on double amplitude modulation in RoF system

作　　者：狄晗 陈新桥[1] 刘晓蕊 霍恺丽 DI Han;CHEN Xinqiao;LIU Xiaorui;HUO Kaili(School of Information and Communications Engineering,Communication University of China,Beijing 100024,China;School of Data Science and Intelligent Media,Communication University of China,Beijing 100024,China)

机构地区：[1]中国传媒大学信息与通信工程学院,北京100024 [2]中国传媒大学数据科学与智能媒体学院,北京100024

出　　处：《光通信技术》2021年第3期47-50,共4页Optical Communication Technology

摘　　要：为了进一步降低系统成本,提高传输性能,提出了一种上、下行传输链路都采用幅度调制实现光载波重用的新方法。介绍了该方法的原理,采用Optisystem软件验证了其可行性。仿真结果表明:当下行传输数据"0"码幅值为1.4 V,光分束器的分光比为5∶5,调制器的消光比为5.2 dB时,系统的性能最优。In order to further reduce radio-over-fiber system cost and improve transmission performance,a novel optical carrier reuse mothed based on amplitude modulation in both uplink and downlink is proposed.The principle of the method is introduced,and its feasibility is verified by Optisystem software.The simulation results show that the performance of the system is optimal when the"0"code amplitude of the downlink transmission data is 1.4 V,the beam splittr's spectral ratio is 5∶5,and the modulator's extinction ratio is 5.2 dB.

关 键 词：光纤通信技术 载波再利用 幅度调制 光载无线通信系统 分光器 

分 类 号：TN929.11[电子电信—通信与信息系统]