基于MZM的倍频因子可调谐的光纤无线系统  

Radio-over-fiber system with tunable frequency multiplication factor based on MZM

作　　者：王琨琨 张朝霞 鲁雅 王倩 周晓玲 WANG Kunkun;ZHANG Zhaoxia;LU Ya;WANG Qian;ZHOU Xiaoling(College of Physics and Optoelectronics,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学物理与光电工程学院,太原030024

出　　处：《光通信技术》2022年第6期50-54,共5页Optical Communication Technology

基　　金：山西省重点研发计划项目(高新技术领域)(201803D121057)资助;2021年度中央引导地方科技发展资金项目(YDZJSX2021A007)资助;2020年度山西省高等学校科技成果转化培育项目(2020CG019)资助。

摘　　要：为了充分利用光纤无线(Ro F)系统中的频带资源,提出了一种基于马赫-曾德尔调制器(MZM)的倍频因子可调谐的Ro F系统,采用波长选择、相干检测、波长重用和数字信号处理(DSP)等技术,实现了Ro F系统上下行链路不同倍频因子信号的输出。仿真结果表明:Ro F系统传输16进制正交幅度调制(16QAM)信号时,上下行链路均可实现多倍频因子可选,下行链路传输、上行链路传输的最小矢量误差范围分别为5.5%~7%、6.4%~8.6%。In order to make full use of the frequency band resources in radio-over-fiber(RoF) system,a frequency multiplier tunable RoF system based on Mach-Zehnder modulator(MZM) is proposed,the techniques of wavelength selection,coherent detection,wavelength reuse and digital signal processing(DSP) are used to achieve the output of signals with different octave factors in the uplink and downlink of the RoF system.The simulation results show that when the RoF system transmits hexadecimal quadrature amplitude modulation(16QAM) signals,the multiple frequency multiplier factor can be realized in both the upstream and downstream links,and the minimum vector error ranges of downlink transmission and uplink transmission are 5.5% ~ 7%and 6.4% ~ 8.6% respectively.

关 键 词：光通信 光纤无线 波长重用 相干检测 最小矢量误差 

分 类 号：TN929.11[电子电信—通信与信息系统]