光传送网(OTN)技术应用阐述

光传送网(Optical Transport Network, OTN)是一种基于波分复用技术(WDM),在光层上组织成网的传送网。其因具有可靠性高、容量大等优点而被广泛应用于各种通信业务中,目前已经形成包括SDH, PTT, ATM, MSTP, IPRAN在内的多种传输体制并存的局面。文中首先简要阐述了OTN技术概念及ROADM技术、OTN技术概念及其作用,然后简要阐述了OTN网络技术及其在我国省际网省、内部网和城域网建设中的典型应用实例、光传输网的特性,即其复用原理和映射复用原理,最后简要地阐述了OTN光传输网应用。

Application of Optical Transport Network (OTN) Technology

Optical Transport Network(OTN) is a transmission network organized on the optical layer based on wavelength division multiplexing (WDM) technology. Because of its high reliability and large capacity, it is widely used in various communication services. At present, the coexistence of multiple transmission systems including SDH, PTT, ATM, MSTP and IPRAN has been formed. This paper will first briefly describe the concept of OTN technology and ROADM technology, the concept of OTN technology and its role, then briefly describe the OTN network technology and its typical application examples in the construction of provincial inter provincial networks and MAN in China, as well as the characteristics of optical transmission networks, multiplexing principles and mapping reuse principles, and finally briefly describe the application of OTN optical transmission networks.