EDFA长度优化模型及泵浦模式差异分析

摘要EDFA是长距离光纤通信系统的重要组成部分，其工作性能是决定通信系统质量的关键，目前在实际运用中EDFA并没有完全发挥其应有的性能，尤其是在DWDM和长距离光纤通信系统中，并没有完全发挥其增益的性能或造成了DFA性能的浪费，使长距离光纤通信系统没有发挥出其应有的性能。为了解决该问题，本课题针对DWDM光纤通信系统环境为基础，建立仿真模型，分析泵浦光源功率、泵浦光源波长变化，泵浦形式，信号光功率等参数对EDFA的性能的影响，设计并验证优化方案，为长距离光纤通信系统的优化提供参考。本文主要从以下几个方面展开研究：首先探究泵浦光源及泵浦形式对EDFA性能的影响，使用不同波长的泵浦光，采用不同的泵浦方式测试EDFA性能，选择场景最优的泵浦光和泵浦方式。其次，探究信号光功率对EDFA的影响，建立数学模型，寻找限制条件下的最优解。综合分析对比上述因素，优化EDFA设计，针对DWDM和长距离多级联光纤通信系统提出可行的最佳EDFA长度优化模型。关键词EDFA:光纤通信系统：Optisystem仿真；DWDM;设计优化AbstractEDFA is an important component of long-distance optical fiber communication systems,and its performance is crucial to the quality of the communication system.However,inpractical applications,the EDFA has not fully demonstrated its performance,especially inDWDM optical fiber communication systems,where the gain performance of the EDFA hasnot been fully utilized or has caused waste of EDFA performance,resulting in thelong-distance optical fiber communication system not achieving its full potential.To addressthis issue,this study focuses on the DWDM and long-distance cascaded optical fibercommunication system environment,establishes a simulation model,analyzes the effects ofpump power,pump wavelength changes,pump form,signal power,and other parameters onthe performance of EDFA,designs,and verifies optimization solutions,providing a referencefor the optimization of long-distance optical fiber communication systems.This paper mainlyinvestigates the following aspects:Firstly,the influence of pump sources and pump forms onthe performance of EDFA is studied.Different wavelengths of pump sources are used,anddifferent pumping methods are tested to determine the best scenario for pump sources andpumping methods.Secondly,the influence of signal power on the performance of EDFA isinvestigated,and a mathematical model is established to find the optimal solution underlimiting conditions.By comprehensively analyzing and comparing the above factors,theEDFA design is optimized,and a feasible optimal EDFA length optimization model isproposed for DWDM and long-distance cascaded optical fiber communication systems.Key wordsErbium-Doped Fiber Amplifier;optical fiber communication system;Optisystemsimulation;Dense Wavelength Division Multiplexing;design optimization目录摘要Abstract.第一章绪论1.1EDFA的放大原理.1.2EDFA的结构及特性..1.2.1EDFA的基本结构1.2.2EDFA的三种结构1.2.3EDFA的特性.…1.3EDFA的仿真…1.3.10 ptisystem简介..1.3.2基于0 ptisystem7.0的仿真搭建1.4研究背景及研究意义1.5国内外研究现状6第二章长距离通信系统EDFA的最佳长度仿真….82.1实验设计…2.1.1实验参数设置.82.1.2仿真数据处理…..82.2实验数据结果与分析.92.2.1980nm泵浦波长实验数据结果92.2.21480nm泵浦波长实验数据结果..122.2.3实验数据对比分析..14第三章探究信号光波长变化时的不同泵浦方式差异..153.1实验设计..153.1.1实验参数设置.153.1.2仿真数据处理….153.2实验数据结果与分析163.2.1980nm泵浦波长实验数据结果16