Study Of WDM Networks Technology And Wavelength Routhed Algorithms

As the current network bandwith is exausting, the network capacity must be expanded to meet the increasing bandwidth demand of IP services。Because the WDM technology can fully utilize the enormous bandwith of the optical fiber, the cost for transferring data can be greatly decreased。This enables WDM technology to be the most attractable technology in wide backbone network。WDM all-optical network can meet the need of modern network communication with good performance。Optical devices are important to WDM network, This paper espacilly focus on the amplifer。With the research of population of equilibrium condition cluster of rare-earth nenergy level,we create the optical transmission template in doped Amplifiers.According to the rate equation and transmission equation of Y_b/E_r,We analyze high chroma rare-earth elements effect to interated optics Y_b/E_r glass amplifiers and the tactics of check..HomoCET result in the decrease of ion observing longevity, going with optical emission.HeterCET result in group effect.It increase each kind of loss of energy,and decrease the most use of gain.It affect the amplifiers'characteristics greatly,and decrease the complete efficiency. it introduces the technology of wavelenth, espacially specifies the influence of wavelength。RWA has been a problem very long, we can find many ways in it, the paper give us a new way, it can be employed to distribute the hardware resoruse of the networks effectively and to reduced the blocking probability problem,which was named FJ algorith.By using alternative routing method with adaptive element, the new dynamic RWA algorithm guarantees low blocking probability and high tolerance of the network mistakes。In the last, this paper give us a good future of WDMo...