光纤技术发展论文浅谈我国光纤到户FTTH的解决方案.doc

光纤技术发展论文： 浅谈我国光纤到户(FTTH)的解决方案 　【摘 要】FTTH(光纤到户)是将光网络单元(ONU)安装在住家用户或企业用户处,是最靠近用户的光接入网应用类型。随着视频、数字电视、IPTV等高带宽多媒体应用的普及,商业大客户对网络带宽、稳定性需求的提高,国内对于FTTH的讨论逐渐升温,市场需求、日渐降低的成本以及前所未有的历史机遇,正推动着FTTH在我国的应用,使其成为未来2-3年我国电信产业发展的一个新亮点。近年来,FTTH相关技术快速发展,已成为电信领域的热点技术,从155Mb/s及622Mb/s的BPON(APON)、非标准的百兆EPON发展到支持 1.25Gb/s线路速率的IEEE标准的EPON和2.5Gb/s的ITU-T标准的GPON。 　　本论文首先概述了FTTH的系统结构,对EPON、GPON技术作了较为详细的论述和比较.其次,分析和阐述了EPON的原理和关键技术。本文重点阐述了 EPON FTTH的在通信运营商网络规划建设中的组网模式、带宽预算、ODN规划等关键技术; 最后介绍了针对别墅区、写字楼、小区楼道以及网吧/大客户用EPON实现FTTH的解决方案。 　　【关键词】EPON;GPON;FTTH 　　Discuss Fiber to home (FTTH) solution in China 【Abstract】 FTTH(fiber to the home) is a kind of optiacal access application model what can be used at home or in enterprise via ONU(optiacal network unit), which is the closest model canbe use by end user. In order to meet with users requirement of broadband ,fast,feasibility an stabiity application on video,digital TV and IPTV multiple nedia. The local marketing is getting more serious demands to low-coast application which apply to current flash business challenge. Thus lead to brand new topic in next 2~3 years with highlyFTTHconceptionin China. In recent years, the FTTH relevance technology develops rapidly, the hot spot technology, BPON ( APON ) ,nonstandard all kinds of from 155Mb/s and 622Mb/s already becoming the telecommunication field foretell standard ITU-T GPON that EPON develops to standard EPON of IEEE and 2.5Gb/s supporting 1.25Gb/s circuits rate. 　　Fisrt of all, this paper has summarized FTTH system stracture, the technology has assumed comparatively detailed discussion and comparison to EPON,GPON. Secondly, analyse and resolve having set forth the EPON principle and the key technology. The budget building the hit the target set o net pattern,bandwidth in the business network plan communicating by letter being in motion and doing business, ODN concentrating on having set forth EPON FTTH plan the main body of a book waiting for the key technology. At last, it introduced that area, offi