Abstract
Dense Wavelength Division Multiplexing technology has been introduced to transmit multiple information streams simultaneously over a single fiber at data rate as high as fiber plant allows (2.4Gbps). For this an algorithm has been developed on a transmission network of an end-to-end unidirectional system. The system support SONET/SDH sort-reach optical interface to which any client compliant device can be attached.([1]) The algorithm has been implemented by using C++ language. The frequency bandwidth has been selected in the range of C to V band, as designated by ITU grid. In the end-to-end unidirectional based DWDM system, the transponder accepts input in the form of standard single-mode or multi-mode laser. These wavelengths have been mapped to a DWDM wavelength which have been multiplexed into a single optical signal and launched into the fiber. A pre-amplifier should be used before it enters the end system. The incoming signal is demultiplexed into individual DWDM lambdas (or wavelengths).