面向中短距的高速光传输技术及发展趋势

doi:10.11959/j.issn.1000-0801.2019074

电信科学 ›› 2019, Vol. 35 ›› Issue (4): 62-73.doi: 10.11959/j.issn.1000-0801.2019074

• 专题：全光网技术与应用 • 上一篇下一篇

面向中短距的高速光传输技术及发展趋势

张磊,朱逸萧,张帆,陈章渊

北京大学电子学系区域光纤通信网与新型光通信系统国家重点实验室，北京 100871

修回日期:2019-04-09 出版日期:2019-04-20 发布日期:2019-04-25
作者简介:张磊（1995- ），男，北京大学博士生，主要研究方向为高速光传输、短距光传输和非线性补偿。|朱逸萧（1991- ），男，北京大学博士生，主要研究方向为高速光传输、短距光传输和非线性补偿。|张帆（1975- ），男，北京大学教授、博士生导师，IEEE高级会员，主要研究方向为光传输、非线性补偿和光子器件。|陈章渊（1968- ），男，北京大学教授、博士生导师，区域光纤通信网与新型光通信系统国家重点实验室主任，主要研究方向为光传输、微波光子学和光子器件。

Trends and enabling technologies on high-speed metro and short-reach optical transmission systems

Lei ZHANG,Yixiao ZHU,Fan ZHANG,Zhangyuan CHEN

State Key Laboratory of Advanced Optical Communication Systems and Networks,Electronics Department,Peking University,Beijing 100871,China

Revised:2019-04-09 Online:2019-04-20 Published:2019-04-25

摘要/Abstract

摘要：

光纤通信网络是现代信息社会的重要基础设施。随着光纤损耗的降低、电—光—电转换器件性能的提升、调制技术的发展和数字信号处理的引入，光纤传输系统的容量获得了极大的提升。近年来，由于数据中心和移动通信升级的需求，光纤传输的研究热点逐步转向100 km以下基于直接检测的中短距传输场景。为此，首先回顾了历代光纤通信系统的历史演进，然后分析了直接检测系统中的限制因素，在此基础上依次介绍一维至四维自相干光检测技术的原理和系统配置，最后展望了未来相干光通信系统的低成本演化趋势。

关键词: 直接检测, 自相干检测, 数字信号处理, 多维度复用

Abstract:

The optical fiber communication network is the important infrastructure for the modern information society.Thanks to the reduction of fiber loss,the improvement of transceiver devices by electro-optical-electrical conversion,the development of modulation technology and the introduction of digital signal processing,the capacity of optical fiber transmission has been greatly improved.In recent years,due to the large capacity demand of data-centers and the next-generation wireless communication,metro and short-range transmission scenarios below 100 km have attracted lots of attention based on direct detection.The historical evolution of optical fiber communication systems was firstly reviewed,then the limiting factors in the direct detection system were analyzed.Furthermore,the principle and system configuration of one-dimensional to four-dimensional self-coherent technology were introduced,and finally,the low-cost evolution trend of the optical coherent transmission system was prospected.

Key words: direct detection, self-coherent detection, digital signal processing, multi-dimension multiplexing

中图分类号:

TP393

张磊,朱逸萧,张帆,陈章渊. 面向中短距的高速光传输技术及发展趋势[J]. 电信科学, 2019, 35(4): 62-73.

Lei ZHANG,Yixiao ZHU,Fan ZHANG,Zhangyuan CHEN. Trends and enabling technologies on high-speed metro and short-reach optical transmission systems[J]. Telecommunications Science, 2019, 35(4): 62-73.

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发展阶段	第一代	第二代	第三代	第四代
光纤类型	多模光纤	单模光纤	单模光纤	单模光纤/色散位移光纤
工作波长/nm	约850	约1 310	约1 550	1 530~1 565
激光器类型	多纵模	多纵模	单纵模	单纵模
光学色散管理	无	无	有	有
WDM＆EDFA	无	无	无	有
商用系统比特率和传输距离	45 Mbit/s	1.7 Gbit/s	10 Gbit/s	超过40 Gbit/s/λ
	10 km	50 km	80 km	数千公里

面向中短距的高速光传输技术及发展趋势

Trends and enabling technologies on high-speed metro and short-reach optical transmission systems

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