WDM原理

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第 1 章 波分复用技术概述.............................................................................................................3
1.1 波分复用光传输技术..............................................................................................................3
1.1.1 波分复用的基本概念....................................................................................................3
1.1.2 WDM 技术的发展背景.................................................................................................4
1.2 DWDM 原理概述....................................................................................................................5
1.3 WDM 设备的传输方式............................................................................................................7
1.3.1 单向WDM ......................................................................................................................7
1.3.2 双向WDM ......................................................................................................................7
1.4 开放式与集成式系统..............................................................................................................8
1.5 WDM 系统组成.......................................................................................................................8
1.6 WDM 的优势..........................................................................................................................9
1.7 CWDM 简介.........................................................................................................................10
思考题 .......................................................................................................................................11
第 2 章 WDM传输媒质...............................................................................................................12
2.1 光纤的结构...........................................................................................................................12
2.2 光纤的种类...........................................................................................................................13
2.3 光纤的基本特性....................................................................................................................14
2.3.1 几何尺寸模场直径..............................................................................................14
2.3.2 衰减常数....................................................................................................................15
2.3.3 色散系数....................................................................................................................15
思考题 .......................................................................................................................................16
第 3 章 DWDM 关键技术.............................................................................................................17
3.1 光源....................................................................................................................................17
3.1.1 激光器的调制方式.....................................................................................................18
3.1.2 激光器的波长的稳定..................................................................................................20
3.2 光电检测器..........................................................................................................................22
3.2.1 PIN 光电二极管.........................................................................................................22
3.2.2 雪崩光电二极管APD ..........................................................................................22
3.3 光放大器...............................................................................................................................23
3.3.1 光放大器概述.............................................................................................................23
3.3.2 掺铒光纤EDF .....................................................................................................24
3.3.3 EDFA 增益平坦控制..................................................................................................25 WDM原理.pdf (425.18 KB, 下载次数: 10)

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