Analysis of OSNR and system design of optical ring network

WU Qian; LEI Fei

doi:10.13756/j.gtxyj.2005.03.003

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Analysis of OSNR and system design of optical ring network

- Analysis of OSNR and system design of optical ring network
- Study on Optical communication Issue 3, Pages: 8-10(2005)
- 作者机构：
  
  1. 武汉邮电科学研究院
  2. 武汉邮电科学研究院湖北武汉　430074
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2005.03.003
  CLC： TN929.11
- Published：2005，
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[1]吴倩,雷非.光环形网的光信噪比分析与系统设计[J].光通信研究,2005(03):8-10+27.

WU Qian, LEI Fei. Analysis of OSNR and system design of optical ring network. [J]. (3):8-10(2005)
[1]吴倩,雷非.光环形网的光信噪比分析与系统设计[J].光通信研究,2005(03):8-10+27. DOI： 10.13756/j.gtxyj.2005.03.003.

WU Qian, LEI Fei. Analysis of OSNR and system design of optical ring network. [J]. (3):8-10(2005) DOI： 10.13756/j.gtxyj.2005.03.003.

摘要

文章指出光环形网的设计中必须考虑最长环路保护时的光信噪比（OSNR）计算问题。导出了光分插复用/光交叉连接（OADM/OXC）节点级联的OSNR的计算公式。最后针对链路发生故障点不同的同一业务波长配置的保护倒换情况进行了OSNR的分析

给出了环路保护倒换情况下的OSNR最低条件的模型

并依据此模型建立了光环形网工程设计方法

简化了工程设计中OSNR验证的计算量。

Abstract

This paper points out that we must consider to calculate the optical signal-to-noise ratio（OSNR） of the longest optical path resulted from protection switching in the design of the optical ring network. A new formula to estimate OSNR for the link with cascaded OADM/OXC nodes in optical network is presented. After comparing a set of OSNR results

we put forward a model for the lowest OSNR under protection switching and a method of designing ring network based on the model

deduce the calculation of OSNR validation in the design of the project.

关键词

光交叉连接光分插复用光信噪比掺铒光纤放大器光分插复用环网保护倒换

Keywords

OXCOADMOSNREDFAOADM ring networkprotect switch

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Dept. of Electronic Engineering, Tsinghua University

清华大学电子工程系信息光电子研究所北京100084

Wuhan Research Institute of Post and Telecommunications

武汉邮电科学研究院湖北武汉430074

Dept. of electronic-info., HUST

Postal code：430205
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