Design and implementation of a 240 Gbit/s OFDM real-time optical communication system

Zeng Tao1; Yang Qi1; He Zhixue1; Yang Chao1; Pan Yong1; Luo Ming1; Yang Zhu1; Yu Shaohua1

doi:10.13756/j.gtxyj.2012.06.005

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Design and implementation of a 240 Gbit/s OFDM real-time optical communication system

- Design and implementation of a 240 Gbit/s OFDM real-time optical communication system
- Study on Optical communication Issue 6, Pages: 4-5(2012)
- 作者机构：
  
  1. 光纤通信技术和网络国家重点实验室
  2. 武汉邮电科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2012.06.005
  CLC： TN929.1;TN919.3
- Published：2012，
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[1]曾韬,杨奇,贺志学,杨超,潘勇,罗鸣,杨铸,余少华.240 Gbit/s OFDM实时光通信系统的设计与实现[J].光通信研究,2012(06):4-5+48.

Zeng Tao1, Yang Qi1, He Zhixue1, et al. Design and implementation of a 240 Gbit/s OFDM real-time optical communication system. [J]. (6):4-5(2012)
[1]曾韬,杨奇,贺志学,杨超,潘勇,罗鸣,杨铸,余少华.240 Gbit/s OFDM实时光通信系统的设计与实现[J].光通信研究,2012(06):4-5+48. DOI： 10.13756/j.gtxyj.2012.06.005.

Zeng Tao1, Yang Qi1, He Zhixue1, et al. Design and implementation of a 240 Gbit/s OFDM real-time optical communication system. [J]. (6):4-5(2012) DOI： 10.13756/j.gtxyj.2012.06.005.

摘要

详细描述了240Gbit/s OFDM（正交频分复用）实时光通信系统的设计与实现。采用多载波发生装置产生3×15个相互正交的光子载波

并对每个光子载波调制4Gbaud/s速率OFDM信号

采用4QAM（二阶正交幅度调制）信号格式。在接收端

分别用对应的本征光子载波解调各路光OFDM信号

使用FPGA（现场可编程门阵列）对采样信号进行实时处理。总有效数据速率达到240Gbit/s。文章报道的传输速率为已报道实时OFDM传输的最高记录。

Abstract

This article describes in detail the design and implementation of a 240 Gbit/s Orthogonal Frequency Division Multiplexing（OFDM） real-time optical communication system.It first generates 3×15 orthogonal optical subcarriers by using a multi-carrier generating device

and modulates each subcarrier with OFDM signals at 4 Gbaud/s using a 4QAM signal format.Then it demodulates the optical OFDM signals in every channel at the receiver end using the corresponding intrinsic subcarrier and implements real-time processing of the sampled signals using FPGA.The total effective data rate reaches 240 Gbit/s

the highest among the reported real-time OFDM transmissions.

关键词

正交频分复用实时模/数转换器现场可编程门阵列

Keywords

OFDMreal timeADCFPGA

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