【正文】 xxxxx 畢業(yè)論文 光纖通信及其關(guān)鍵技術(shù)研究 學(xué)生姓名 __________________________ 系（部） __________________________ 專 業(yè) __________________________ 指導(dǎo)教師 __________________________ 年 月 日河南工程學(xué)院畢業(yè)論文 I 摘 要 目前，光纖通信正在向著大容量、高速率、長(zhǎng)距離方向迅猛發(fā)展，其技術(shù)的主要發(fā)展趨勢(shì)充分體現(xiàn)在系統(tǒng)高速化、網(wǎng)絡(luò)化，光線長(zhǎng)波長(zhǎng)化，光纜纖芯高密度化和光器件高度集成化等方面。為了能全面、系統(tǒng)地了解現(xiàn)代光纖通信系統(tǒng)的特點(diǎn)、關(guān)鍵技術(shù)的原理及其應(yīng)用，以及光纖通信在 21 世紀(jì)的發(fā)展趨勢(shì)，我選寫(xiě)了本文。本文力求由淺入深，循序漸進(jìn)，基本概念和基本原理準(zhǔn)確清晰，論證簡(jiǎn)明扼要，避免繁瑣的推理，著重論述結(jié)論，注重將基本原理和實(shí)際應(yīng)用有機(jī)地結(jié)合起來(lái)，并且特別注意以形象、直觀的圖標(biāo)形式 來(lái)配合文字的敘述，能使人抓住技術(shù)關(guān)鍵并全面理解本文內(nèi)容。 本文主要介紹了光纖通信的基本特點(diǎn)與應(yīng)用，其中主要介紹了 SDH 技術(shù)的原理與應(yīng)用，并且簡(jiǎn)單介紹了幾種現(xiàn)代光纖通信技術(shù)及光纖通信技術(shù)的發(fā)展趨勢(shì)。 關(guān)鍵詞： 光纖通信 SDH 技術(shù) DWDM 技術(shù) 河南工程學(xué)院畢業(yè)論文 II Abstract At present, optical fiber munications are in a highcapacity, highspeed, longrange direction of rapid development, its technical development trend of the main fully reflected in the highspeed systems, workbased, long wavelength of light, highdensity core of the fiber optic cable and optical devices highly integrated Of, and so on. In order to provide a prehensive, systematic understanding of modern optical fiber munication systems to the characteristics of the principle of key technology and its applications, and optical fiber munications in the 21st century, the development trend, I wrote a paper election. This paper seeks to easytodigest, step by step, the basic concepts and basic principles of accuracy clear, concise proof, to avoid the plicated reasoning, focused on the conclusion will focus on basic principles and practical application of anic integration, with special attention to the image, intuitive map Standard form to cope with the narrative text, people can seize the key technology and prehensive understanding of this content. This paper describes the optical fiber munication and application of the basic characteristics, mainly on SDH technology and application of the principle, and a brief introduction of several modern optical fiber munication technology and munication technology trends. Key words: Optical fiber munications SDH technology DWDM technology 河南工程學(xué)院畢業(yè)論文 III 目 錄 引 言 ........................................................................................................................................... 1 第一章 概述 ............................................................................................................................... 2 第一節(jié) 光纖通信的基本概念 ............................................................................................... 2 一、光纖通信的定義 ..................................................................................................... 2 二、光纖通信發(fā)展過(guò)程 ................................................................................................. 2 第二節(jié) 光纖通信的特點(diǎn)與應(yīng)用 ........................................................................................... 3 一、光纖通信的特點(diǎn) ..................................................................................................... 3 二、光纖通信的應(yīng)用 ..................................................................................................... 4 第三節(jié) 光纖通信系統(tǒng)的構(gòu)成及分類 ................................................................................... 5 一、光纖通信系統(tǒng)的基本構(gòu)成 ..................................................................................... 5 二、光纖通信系統(tǒng)分類 ................................................................................................. 5 第二章 光纖通信 —— SDH 技術(shù) ........................................................................................ 8 第一節(jié) SDH 的產(chǎn)生和基本概念 .......................................................................................... 8 一、 PDH 存在的主要問(wèn)題 ............................................................................................ 8 二、 SDH 的產(chǎn)生 ............................................................................................................ 9 三、 SDH 的概念 ............................................................................................................ 9 四、網(wǎng)絡(luò)節(jié)點(diǎn)接口 ......................................................................................................... 9 第二節(jié) SDH 的速率與幀結(jié)構(gòu) ............................................................................................ 10 一、 SDH 的速率 .......................................................................................................... 10 二、 SDH 的幀結(jié)構(gòu) ...................................................................................................... 10 三、 SDH 的特點(diǎn) .......................................................................................................... 12 四、 SDH 應(yīng)用的若干問(wèn)題 .......................................................................................... 13 第三節(jié) 映射原理與同步復(fù)用 ............................................................................................. 14 一、基本復(fù)用映射結(jié)構(gòu) ............................................................................................... 14 二、基本復(fù)用映射步驟 ............................................................................................... 15 三、映射方法 ............................................................................................................... 16 河南工程學(xué)院畢業(yè)論文 IV 四、復(fù)用方法 ............................................................................................................... 16 五、指針 ....................................................................................................................... 18 第四節(jié) SDH 開(kāi)銷 ................................................................................................................ 18 第五節(jié) SDH 網(wǎng)元 ............................................................................................................... 19 一、終端