Abstract: This paper analyzes and compares the multi-technology of optical access network: APON,WRPON and EPON,especially on construction and protocol stack of EPON,which is based on GE/10GE.This paper concludes that PON is the development trend of optical access network and is one of the most potential access technologies in optical access network.

摘要： 从光接入网的有源/无源分类开始，对无源光网络的APON、WRPON、EPON等多种实现技术进行了分析与比较，对其中EPON技术进行了重点分析研究。指出PON是光接入网的发展方向，基于1Gbps/10Gbps以太网的宽带无源光网络EPON是最具潜力的接入技术。光接入是宽带接入网的长期发展趋势，光将不断地向最终用户推进。

关键词: 光接入网, 基于ATM技术的无源光接入网, 基于波长路由的无源光接入网, 基

CLC Number: 

• TN929.11