上海大学学报(自然科学版) ›› 2012, Vol. 18 ›› Issue (1): 1-6.doi: 10.3969/j.issn.1007-2861.2012.01.001

• 论文 •    下一篇

基于中心化梳状光源的125 Gbit/s全光OFDM-PON接入网架构

汪敏,张倩武,张林,宋英雄,李迎春,林如俭   

  1. 上海大学 特种光纤与光接入网省部共建重点实验室,上海 200072
  • 收稿日期:2011-12-16 出版日期:2012-02-29 发布日期:2012-02-29
  • 通讯作者: 汪敏(1957~),男,教授,博士生导师,博士,研究方向为数字通信、宽带接入网技术等. E-mail: wangmin@mail.shu.edu.cn E-mail:wangmin@mail.shu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(61132004,60972056,60877053);上海市科委资助项目(11511502501,11511502502);上海市重点学科建设资助项目(S30108);上海市科委重点实验室资助项目(08DZ2231100);上海市教委产学研重点资助项目(11CXY33)

All-Optical OFDM-PON Architecture Based on Centralized Comb Source for 125 Gbit/s Access Network

WANG Min,ZHANG Qian-wu,ZHANG Lin,SONG Ying-xiong,LI Ying-chun,LIN Ru-jian   

  1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China
  • Received:2011-12-16 Online:2012-02-29 Published:2012-02-29

摘要: 基于正交频分复用(orthogonal frequency-division multiplexing,OFDM)技术的无源光网络(passive optical network,PON)因其通信容量大、抗色散能力强等优点,已成为下一代基于PON接入网的解决方案之一.与此同时,40/100 Gbit/s以太网标准的制定也使100 Gbit/s光网络传输实用化成为可能.提出一种基于中心化梳状光源的全光OFDM-PON网络架构,为100 Gbit/s光接入网提供了高效的实现方法.该系统以梳状光谱发生器为中心化光源,实现了全光连续OFDM信号的产生以及低成本的上下行相干检测.最后,对系统进行模拟仿真,并对结果性能进行了分析.

关键词: 梳状光谱发生器, 无源光网络, 正交频分复用

Abstract: OFDM (orthogonal frequency-division multiplexing)-PON (passive optical network) is considered a promising solution for the next generation PON-based access networks. Meanwhile, the released 40/100 Gbit/s Ethernet standard allows 100 Gbit/s fiber transmission to be realized in the near future. We propose a novel OFDM-PON architecture based on all-optical waveform and flat frequency comb generation for 100 Gbit/s optical access. The flat frequency comb generation provides an effective and costless way to generate all-optical OFDM signals and implement coherent detection in both downstream and upstream. Simulation results show robust and outstanding performance of the proposed system. 

Key words: flat frequency comb generation, OFDM, PON

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