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当前,接入网仍然是铜线资源的天下,虽然ADSL2/ADSL2+等多种新技术的应用极大地拓展了DSL的生存空间,但在面对如IPTV、CATV等高带宽的视频业务时仍然力不从心,而FTTH则凭借无可比拟的巨大带宽优势为运营商的宽带化业务提供了最理想的选择。FTTH(FiberToTheHome)即光纤到家庭。FTTH有两种,一种是点到点入户结构;另一种是点到多点无源光网络(PON)
Currently, the access network is still the world’s copper resources. Although the application of many new technologies such as ADSL2 / ADSL2 + has greatly expanded the living space of DSL, it still fails to deal with high-bandwidth video services such as IPTV and CATV , And FTTH with unparalleled huge bandwidth advantage for the operator’s broadband business provides the best choice. FTTH (FiberToTheHome) that fiber to the home. There are two types of FTTHs, one is a point-to-point home structure; the other is a point-to-multipoint passive optical network (PON)