【摘要】光缆是光纤通信系统的重要组成部分，是光信号传输的媒介，也是光纤通信网络传输性能稳定、可靠的基本保证。光缆由作为光信号传输主体的光纤、保持光纤不受外界环境影响的护层，以及为光缆提供抗拉强度的加强件组成。光纤的种类及特性决定光缆线路的传输容量和性能。光缆的结构类型决定光缆对外界机械和环境作用的适应程度。本文主要通过五个部份进行论述，第一部份到第三部份着重于光纤与光缆的概念与原理的论述，第四个部份是本文的重点，主要阐述了如何进行光缆线路敷设设计的理论，在论文的第五个部份是案例分析。【关键词】光纤光缆特性通信系统敷设【Abstract】Cableistheimportantcompositionpartofthecommunicationsystemofopticalcable,isthemediumofsmoothsignaltransmission,isalsothecommunicationnetworktransmissionperformanceofopticalcablesteady,reliablebasicguarantee.Cablefrommaintenanceandtheopticalcableassolelysignaltransmissionmainpartopticalcabledonotgettheinfluenceofoutsideambientprotectlayer,aswellasthereinforcementcompositionthatofferstensilestrengthforcable.Propertyandthekindofopticalcabledecisionperformanceandthetransmissioncapacityofcableline.Thestructuraltypeofcabledecisioncableforoutsidemechanicalandenvironmentalrolemeetlevel.Thispaperpassmainly5partialdiscuss,thefirstsharegoto3thpartialstressintheexpositionofprincipleandtheconceptofcableandopticalcable,4thGepartialisthefocalpointofthispaper,haveelaboratedmainlyhowtocarryoutcablelinelay,the5thinpaperGepartialiscaseanalysis.【KeyWords】OpticalcableCablePropertySystemcommunicatesLay目录第1章光纤与光缆概述........................................11.1光纤的结构与分类........................................11.1.1光纤的结构........................................11.1.2光纤的分类........................................11.2光缆的结构与端别........................................21.2.1光缆的结构........................................21.2.2光缆的端别........................................31.3光缆分类与选择........................................31.3.1光缆的分类........................................31.3.2光缆的选择要点........................................4第2章光纤传输原理及传输特性................................62.1光纤传输原理分析........................................62.2光纤的传输特性........................................62.2.1损耗特性........................................62.2.2色散特性与带宽........................................72.2.3偏振特性........................................10第3章光纤通信系统组成及原理...................................11第4章光缆线路敷设工程理论设计..................................134.1工程设计的原则和内容........................................134.2敷设方式........................................134.2.1直埋光缆........................................144.2.2架空光缆........................................144.2.3.管道光缆........................................154.2.4.局内光缆........................................184.2.5.光缆预留长度......................................184.2.6光缆接续........................................194.3传输设计........................................194.4光缆选型................................................204.4.1光缆结构选择...........................................204.4.2光纤类型的选用.............................................21第5章—南坪鱼洞光缆线路敷设.....................................225.1——南坪鱼洞光缆敷设线路设计依据.............................225.2——南坪鱼洞...
