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本文首先简要介绍世界宽带接入网发展的状况和主要应用,然后讲述了宽带光纤接入网的优点。接下来,重点分析了宽带点到点有源以太网光纤系统和宽带点到多无源光纤系统的特点和应用。最后提出我国光纤接入网的发展可能跨越APON、ⅡPON和EPON阶段,从宽带点到点以太网光纤系统和GEPON开始,乃至最终过渡到GPON阶段的初步设想。
This article first briefly introduces the status and main applications of the development of broadband access network in the world, and then describes the advantages of broadband optical access network. Next, the characteristics and applications of broadband point-to-point active optical fiber systems and broadband point-to-point passive optical fiber systems are analyzed. At last, it is put forward that the development of China’s optical access network may span the stage of APON, ⅡPON and EPON, and the initial assumption from the beginning of broadband optical fiber system to GEPON and finally the transition to GPON.