The Measure and Principle of Q Gene of Optical Fiber Communication System

张成良

doi:10.13992/j.cnki.tetas.2001.04.003

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The Measure and Principle of Q Gene of Optical Fiber Communication System

更新时间：2026-04-20

- The Measure and Principle of Q Gene of Optical Fiber Communication System
- Issue 4, Pages: 10-13(2001)
- 作者机构：
  
  信息产业部电信传输研究所,北京,100045
- 作者简介：
- 基金信息：
- DOI：10.13992/j.cnki.tetas.2001.04.003
  CLC： TN929.11
- Published：2001
- 稿件说明：
移动端阅览
[1]张成良.光通信系统Q因子测量和原理[J].电信工程技术与标准化,2001(04):10-13.

张成良. The Measure and Principle of Q Gene of Optical Fiber Communication System[J]. 2001, (4): 10-13.
[1]张成良.光通信系统Q因子测量和原理[J].电信工程技术与标准化,2001(04):10-13. DOI： 10.13992/j.cnki.tetas.2001.04.003.

张成良. The Measure and Principle of Q Gene of Optical Fiber Communication System[J]. 2001, (4): 10-13. DOI： 10.13992/j.cnki.tetas.2001.04.003.

摘要

１０Ｇｂｉｔ／ｓ及其以上速率光传输系统非线性效应很强，对系统最终的ＢＥＲ性能有着举足轻重的影响。人们倾向采用Ｑ因子来衡量系统性能。Ｑ因子被定义为在接收机判决电路信噪比，这种检测到的电ＳＮＲ最终决定物理层系统ＢＥＲ。可以适用于各种信号格式和速率的数字客户信号，而且不需要解开帧结构，比较简单易行。本文具体讨论Ｑ因子的定义及与ＯＳＮＲ之间的关系。同时介绍ＩＴＵ关于Ｑ因子的测试方法和对测试设备的要求。

Abstract

The nonlinear distortion of 10Gbit/s and over 10Gbit/s optical fiber transmission system influences system’s BER

Q gene measures signal to noise ratio at the sink

the measure result-SNR decides system’s BER

is the same with all kinds of formats and rates of digital signals. The define of Q gene and the realtion between OSNR and Q gene are discussed

the measure method and equipment about Q gene of ITU are introduced.

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