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纵观过去20余的年通信史,从逐渐淡出的PDH准同步传输网,到网络稳定可靠、网管功能强大的SDH同步数字传输,再到具有超大容量、多光方向、超强交叉能力、网管功能完善的超强SDH数字传输设备和密集波分复用系统,本文分析了光通信技术的发展历程,对融入IP Over ATM、IP Over SDH、IP Over Optical等技术的未来光通信网络进行了简要的探讨。
Throughout the past more than 20 years of communication history, from the gradual decline of the PDH quasi-synchronous transmission network to the network stable and reliable, powerful network management SDH synchronous digital transmission, and then to have a large capacity, multi-light direction, superior cross-ability, network management This paper analyzes the development course of optical communication technology, and briefly introduces the future optical communication network which integrates technologies such as IP Over ATM, IP Over SDH, IP Over Optical and so on Discussion.