While using the explosive progression of Web users, the attention in data communication network bandwidth has elevated considerably.Using the finish of 2000, there’s been already 29 million Internet domains but nevertheless growing. Digital library, online learning, e-commerce, video as needed and peer-to-peer discussing are all spawned by websites like these.

Many of the backbone level connections for your internet derive from AT&T, Worldcom and Sprint obtaining a typical speed of two.5Gbps. The network infrastructure has serious difficulty to maintain the bandwidth demand which is the reason 10Gbps, 40Gbps additionally to 100Gbps are more and more being deployed and produced with the fiber optic equipment manufacturers.

Future Internet applications can produce a much more demand across the bandwidth and switching abilities of people network systems. Using the beginning of Web 2 . 0 . . ., more bandwidth-hungry applications which extensively uses graphics, images and video are utilized. The Internet backbone must maintain this demand. Really many carriers have formerly upgraded their network to 10Gbps and 40Gbps. (although, 100Gbps remains under development now).

Across the technology side, ATM (Asynchronous Transfer Mode) over SONET are really adopted because the primary transport mechanism for broadband traffic. Presently, this visitors transported on single mode fiber between switching hubs for roughly 40Gbps.

However, the rate of each fiber cannot be elevated indefinitely, once the bandwidth needed is much more than may be based on just one fiber, multiplexing technologies are built-in to the device for example TDM and WDM.

You will find amount of promising technologies for fiber optic data communications. But we must investigate potentials and limitations of each technology. These technologies include All-Optical Network, WDM and Wave length Routing technologies.