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数字光纤通信系统及其设计
摘要
当今世界，计算机与通信技术高度结合，光纤通信有了长足发展。纵观当今电信的主要技术，光纤和光波的变革极大的提高着信息的传输容量。进入1993年以后，我国光纤通信已处于持续大发展时期。其特征是大量新技术，特别是网络技术、高速介质接入网(HMAV)、光时分复用接入(OTMMA)和波分复用接入(WDMA)、光孤子(soliton)、掺铒光纤放大器(EDFA)、 SDH产品等开始实用化并开展大量、深入的研究工作。面对光纤通信技术的普遍应用，了解光纤通信系统组成及其系统参数的测量技术现状，无论是对光纤通信的业主、经销商，还是对光纤通信的广大用户都是重要的。
本论文主要介绍数字光纤通信系统基本组成，含义及其特点，阐述数字光信通信系统的设计方法。针对WDM+EPFA数字光纤链路系统进行具体设计。 关键字;
数字光纤通信系统 掺铒光纤放大器(EDFA) 波分复用（WDM）
Digital optical communications system and its design
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Abstrac
In today's world, the combination of computer and communication technology, the height of optical fiber communication with rapid development. In today's main technology of telecommunications, optical fiber and light changes greatly improves the information transmission capacity. Since 1993, China into a continuous fiber communication has great development period. Its characteristic is a new technology, in particular network technology, high-speed medium access (HMAV), light time multiplex access (OTMMA) and WDM access (WDMA), optical solitons (soliton), erbium doped fiber amplifier (EDFA), SDH products began to
practical and large, deep research work. At the same time, various special optical system into the field of national economy, contributed to our optical fiber communication technology of vigorous development. Facing the optical fiber communication technology, understand the general application of optical communication system and the system parameters measurement technology situation of optical fiber communication, whether the owner, dealers, or for optical fiber communication customers are important.
This paper mainly introduces the basic components and fiber optic communications system, expounds the meaning and characteristics of digital communication system design of light letters. In WDM optical fiber links EPFA + digital system design. Key words,
Digital optical communication system erbium doped fiber amplifier (EDFA) WDM
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目 录
1 数字光纤通信系统···········································（4）
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数字光纤通信系统概论··································（4）
1.1.1 数字光纤通信系统的组成····························（4） 1.1.2 数字光纤通信系统的含义····························（5） 1.1.3 数字光纤通信系统的特点····························（5） 数字光纤通信系统的设计方法····························（5）
1.2.1 数字光纤通信系统的构成·····························（5）
1.2.2 数字光纤通信系统的设计方案······················（6） 2 波分复用（WDM） ··········································（6）
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光波分复用（WDM）技术概述 ····························（7） WDM系统的基本构成····································（7） 技术的主要特点·····································（7）
3 掺铒光纤放大器(EDFA)·······································(8)
掺铒光纤放大器概述······································(8) 掺铒光纤放大器原理······································(8) 4 基于WDM+EPFA数字光纤链路系统的设计······················（9）
数字光纤通信系统及其设计
