Single laser-based 3.2 Tbit/s PM-QPSK real-time coherent transmission over 2 080 km standard single mode fiber

Xu Junbo; Zhang Zhang; Luo Ming; Huang Bo; Li Chao; Liu Wu; Li Jie; He Zhixue; Yang Qi; Yu Shaohua

doi:10.13756/j.gtxyj.2015.01.001

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Single laser-based 3.2 Tbit/s PM-QPSK real-time coherent transmission over 2 080 km standard single mode fiber

- Single laser-based 3.2 Tbit/s PM-QPSK real-time coherent transmission over 2 080 km standard single mode fiber
- Study on Optical communication Issue 1, Pages: 1-4(2015)
- 作者机构：
  
  1. 烽火通信科技股份有限公司
  2. 武汉邮电科学研究院光纤通信技术和网络国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.01.001
  CLC： TN929.11
- Published：2015，
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[1]徐俊波,张璋,罗鸣,黄博,李超,刘武,李婕,贺志学,杨奇,余少华.单光源3.2Tbit/s2080km实时相干传输试验[J].光通信研究,2015(01):1-4.

Xu Junbo, Zhang Zhang, Luo Ming, et al. Single laser-based 3.2 Tbit/s PM-QPSK real-time coherent transmission over 2 080 km standard single mode fiber. [J]. (1):1-4(2015)
[1]徐俊波,张璋,罗鸣,黄博,李超,刘武,李婕,贺志学,杨奇,余少华.单光源3.2Tbit/s2080km实时相干传输试验[J].光通信研究,2015(01):1-4. DOI： 10.13756/j.gtxyj.2015.01.001.

Xu Junbo, Zhang Zhang, Luo Ming, et al. Single laser-based 3.2 Tbit/s PM-QPSK real-time coherent transmission over 2 080 km standard single mode fiber. [J]. (1):1-4(2015) DOI： 10.13756/j.gtxyj.2015.01.001.

摘要

文章介绍了基于31.786Gbaud/s光收发模块实现的32×100Gbit/s信号速率、2 080km标准单模光纤的实时相干光传输试验

信号采用PM-QPSK（偏振复用四相相移键控）调制格式。信号光源为单个激光器产生的32路波分复用子光载波

频率间隔为32GHz

频谱效率达到3.11bit/s/Hz。信号传输2 080km后

采用20%的FEC（前向纠错）编码时

Q值仍有1.2dB的余量。此外

还研究了光滤波器带宽与OSNR（光信噪比）代价的关系。25h挂机试验结果显示

信号接收纠错前误码率在1E-2以下

表明该传输系统稳定可靠。该系统为国内首个单光源3.2 Tbit/s实时传输试验系统

对提升现有100Gbit/s商用光纤传输系统的传输效率有较大的指导意义。

Abstract

This paper demonstrates a real-time coherent optical transmission test at a signal rate of 32×100Gbit/s in the Polarization-Multiplexed Quadrature-Phase-Shift-Keying（PM-QPSK）modulation format over 2 080 km Standard Single Mode Fiber（SSMF）realized on the basis of a 31.786Gbaud/s transponder.It generates 32 WDM channels from a single laser on a 32 GHz grid and yields a spectral efficiency of 3.11b/s/Hz.When it employs 20% FEC limit（BER level of 2E-2）after 2 080 km transmission

the Qfactor still has 1.2dB margin.In addition

it investigates the relationship between filter bandwidth and OSNR penalties of 100Gbit/s PM-QPSK signal.25 htested measurement shows that the system is stable and all the tested BERs are below 1E-2at 1 550 nm WDM channel.

关键词

相干探测实时传输100Gbit/s光收发模块偏振复用四相相移键控

Keywords

coherent detectionreal-time transmission100Gbit/s transponderPM-QPSK

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