基于DP-BPSK调制器的四级光信号生成方案
A four-level optical signal generation scheme based on DP-BPSK modulator
胡霞 1赵利2
作者信息
- 1. 长沙航空职业技术学院,湖南长沙 410124;湖南省导弹维修工程技术研究中心,湖南长沙 410124
- 2. 复旦大学信息科学与工程学院,上海 200433
- 折叠
摘要
面对短距离光通信中不断增长的数据流量需求,以及高昂的高速数据中心互连成本,文章提出了一种基于双偏振二进制相移键控(DP-BPSK)调制器的四级光信号生成方案.所提方案的实验架构包括激光二极管(LD)、由二进制数据驱动的DP-BPSK调制器、偏振控制器(PC)和偏振器,无需数字模拟转换器,结构简单易于实现.为验证所提方案的可行性,采用方案生成了四级脉冲振幅调制(PAM-4)信号,并将生成的PAM-4信号以不同的数据速率在65km标准单模光纤(SSMF)上传输,传输信号的眼图和误码率实验结果表明信号具有较高质量.因此,所提方案在未来短距离光通信中具有良好的应用潜力.
Abstract
In the face of increasing data traffic demand in short-distance optical communication and the high cost of high-speed data center interconnection,a four-level optical signal generation scheme based on dual-polarization binary-phase-shift-keying(DP-BPSK)modulator is proposed.Experimental framework of the proposed scheme consists of a la-ser diode(LD),DP-BPSK modulator driven by binary data,polarization controller(PC),and polarizer.The DP-BPSK modulator driven by binary data without digital analog converter,making it structurally simple and easy to implement.To verify the feasibility of the proposed scheme,4-level pulse amplitude modulation(PAM-4)signals are generated using this scheme and transmitted over a 65km standard single-mode fiber(SSMF)at different data rates.The performance of these signals is evaluated based on the experimental results,including the eye diagrams and bit error rate(BER),which indicates that the transmitted signals have a high quality.Therefore,the proposed scheme has promising application po-tential in future short-distance optical communication.
关键词
多级调制1/偏振复用2/脉冲幅度调制3/光纤通信4Key words
multilevel modulation 1/polarization multiplexing 2/pulse amplitude modulation 3/optical fiber com-munication 4引用本文复制引用
基金项目
湖南省教育厅科学研究项目(23C1051)
出版年
2024
NETL
NSTL
万方数据