Dwdm Technology In Engineering Applied Research

Along with the Internet service and communication quickly increasing in our country, how to appease the increasing require to the capacity and bandwith is a problem to the communication construct bureau to slove in time.It is possible to come true to much capacity in the existing fiber transmission system with the technology of DWDM . Effectively utilizing the present fiber network resource and DWDM technology to construct the DWDM fiber transmission system .Focus in the constructing DWDM fiber transmission system and with the example ,the article advance every parameter of the technology and the request which should be advised during the construct .related technical problems in constructing the nationwide WAP service network, based on the present technical conditions and network resource, the article brings out a total technical solution.The article includes six chapters:Chapter one introduces the DWDM related concept, and the constitute of it.discuses the necessary of constructing the DWDM fiber transmission system, and brief describes the content of the article.Chapter two describes the technology require of the DWDM system. Comparing the definition and target of technology parameter which should be uesd during the projet.For example ,the distribution of the wave length,the interface of the laser,the laser amplifier etc..Chapter three detail discusses the construct regulations and network structure of the DWDM system. And focus in the The 3 2 X 2 . 5 G bit/s DWDM transmission system ,reseach the fiber style ,the loss of the laser channels,the dispersive etc.Chapter four describes the related technical problems such as the management of the network,the element mangement,the mistake of the networks and the protect of the network and the style of the power.Chapter five describe the real example of the project of DWDM.Related with the project of the east-north loop of fiber transmission system ,research the layout of the network,analysis the performance of the transmission and bring out the frondose project of construction,inculde the number of the wave length,the speed of the transmission ,the style of he fiber etc.Chapter six is the summary of the article.