直接探测光纤通信系统场信号恢复技术综述  

Survey of Field-Signal Recovery Technique in Direct-Detection Optical Fiber Communication System

作　　者：孙梦凡 蔡沅成 朱敏 张丽瑶 梁胜 雷明政 张教 华炳昌 田亮 邹昱聪 李爱杰 Sun Mengfan;Cai Yuancheng;Zhu Min;Zhang Liyao;Liang Sheng;Lei Mingzheng;Zhang Jiao;Hua Bingchang;Tian Liang;Zou Yucong;Li Aijie(National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,Jiangsu,China;Purple Mountain Laboratories,Nanjing 211111,Jiangsu,China)

机构地区：[1]东南大学移动通信国家重点实验室,江苏南京210096 [2]网络通信与安全紫金山实验室,江苏南京211111

出　　处：《激光与光电子学进展》2022年第11期16-25,共10页Laser & Optoelectronics Progress

基　　金：江苏省重点研发计划(2020012);江苏省科技成果转化专项(2019026)。

摘　　要：直接探测光纤通信系统凭借其结构简单、成本低廉的优势成为未来短距光通信的主要方案,而场信号恢复(FSR)技术是进一步提升直接探测系统容量的关键技术。介绍了直接探测光纤通信系统中斯托克斯矢量接收机、载波辅助差分检测接收机和KramersKronig(KK)接收机的系统结构、工作原理及主要研究进展,并对比了三种FSR技术各自的优缺点。结果表明,相比其他两种技术,KK接收机技术有明显优势。最后,明确了KK接收机在未来直接探测光纤通信系统中的重要地位,并分析了KK接收机当前面临的关键技术挑战和解决方案。The directdetection optical fiber communication system has become the main solution for the future shortreach optical transmission links due to its simple structure and low cost.The fieldsignal recovery(FSR)technique is a critical technique to improve the capacity of the directdetection system.This paper introduces a system structure,working principle and main research progress of Stokes vector receiver,carrierassisted differential detection receiver and KramersKronig(KK)receiver in direct detection optical fiber communication systems.The advantages and disadvantages of three commonly used FSR techniques are compared.The results show that compared with the other two techniques,and the KK receiver technology has obvious advantages.Finally,the important position of KK receiver in the future directdetection optical fiber communication systems is clarified.Meanwhile,the key technical challenges faced by KK receiver are analyzed and the solutions for reference are given ultimately.

关 键 词：光通信 直接探测 场信号恢复 接收机 

分 类 号：TN929.[电子电信—通信与信息系统]