现阶段在我国的通信网络运营商中,其网络建设的重点为城域网。城域网在实际应用的过程中具有业务流向与流量不确定性以及多样化业务类型的特征,随着科学技术的发展与更新,城域网能够适用于各种不同的应用需求。鉴于此,本文主要对城域网现状进行了简单的分析,并在此基础上对城域波分技术的应用及发展进行重点阐述。 At this stage in China’s communications network operators, the focus of its network construction for the MAN. MAN has the characteristics of business flow and traffic uncertainty as well as diversified service types in practical application. With the development and updating of science and technology, MAN can adapt to different application requirements. In view of this, this text has carried on the simple analysis to the present situation of the metropolitan area network, and on this basis, mainly elaborated the application and development of metro wavelength division technology.