Dense Wavelength Division Multiplexing

Dense Wavelength Division Multiplexing is a good seminar topic for final year students of Engineering and Technology. Dense Wavelength Division Multiplexing (DWDM ) is a technique that makes possible transmission of multiple discrete wavelengths carrying data rate as high as fiber plant allows over a single fiber unidirectional or bidirectional. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such Projects and Seminar.


It is an advanced type of WDM in which the optical channels are more closely spaced than WDM. The demand of bandwidth is increasing day by day, especially for data traffic. Service providers are required to provide the bandwidth dynamically and in shortest possible time. This can only be done by DWDM. In future advanced DWDM components will be available.

Thus, it will be possible to manage the optical signal dynamically, which will allow more flexibility to the service providers.

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The capacity of transmission media can be upgraded easily by using DWDM technology. The capacity of existing DWDM system can be upgraded by deploying higher channel capacity system.Thus, The need of laying new fibers for increasing capacity of transmission media is avoided.

Bit rate transparency in DWDM system, optical channels can carry any transmission format. thus the different wavelengths from different systems can be transmitted simultaneously and independently over the same fiber without need for a common ATM,Gigabit Ethernet etc over a common layer. Thus DWDM system can transport any type of optical signal.


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