Test and analysis of constellation map of 100 Gbit/s DP-QPSK modulated optical signals

Huang Ying1; Hu Yi1; Yu Shaohua1; Zou Hui1

doi:10.13756/j.gtxyj.2012.04.003

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Test and analysis of constellation map of 100 Gbit/s DP-QPSK modulated optical signals

- Test and analysis of constellation map of 100 Gbit/s DP-QPSK modulated optical signals
- Study on Optical communication Issue 4, Pages: 1-3(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
  3. 武汉电信器件有限公司
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2012.04.003
  CLC： TN761
- Published：2012，
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[1]黄莹,胡毅,余少华,邹晖.100Gbit/s DP-QPSK调制光星座图测试及分析[J].光通信研究,2012(04):1-3+32.

Huang Ying1, Hu Yi1, Yu Shaohua1, et al. Test and analysis of constellation map of 100 Gbit/s DP-QPSK modulated optical signals. [J]. (4):1-3(2012)
[1]黄莹,胡毅,余少华,邹晖.100Gbit/s DP-QPSK调制光星座图测试及分析[J].光通信研究,2012(04):1-3+32. DOI： 10.13756/j.gtxyj.2012.04.003.

Huang Ying1, Hu Yi1, Yu Shaohua1, et al. Test and analysis of constellation map of 100 Gbit/s DP-QPSK modulated optical signals. [J]. (4):1-3(2012) DOI： 10.13756/j.gtxyj.2012.04.003.

摘要

由于调制光信号质量的好坏影响到传输和接收信号质量的好坏

因此对100Gbit/s系统中的数字光信号的测量与分析十分重要。文章对100Gbit/s transponder中调制光信号的生成原理进行了分析

对数字光信号测试中的OSNR（光信噪比）、EVM（误差矢量幅值）和星座图等几个参数进行了必要的理论探讨。同时也分析了各种QPSK（四相相移键控）信号星座图的图形

为使用调制器分析问题提供了有效参考。

Abstract

As the quality of the modulated optical signals is associated with that of the transmitted and received signals

it is very important to test and analyze them.This paper describes the generating principle of the modulated optical signals in 100 Gbit/s transponder modules and conducts the necessary theoretical exploration of such parameters as Optical Signal Noise Ratio（OSNR）

Error Vector Magnitude（EVM） and constellation map involved in digital optical signal tests.In addition

it analyzes the graphs of constellation maps of various QPSK signals

offering an effective reference for the analysis by transmitters.

关键词

双极化四相相移键控发射机QPSK调制信号光信噪比误差矢量幅值星座图

Keywords

DP-QPSK transmitterQPSK modulated signalOSNREVMconstellation map

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