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Design and Performance Evaluation of DWDM based Metropolitan Ring Networks

Jaspreet Minhas, Rajesh Kochher

Dense wavelength division multiplexed (DWDM) optical transport technology has revolutionized the telecommunication industry. With the advent of wideband fiber-optical amplifiers, DWDM optical transmission systems are now capable of providing capacities in excess of hundreds of gigabits per second over hundreds of kilometers on a single pair of fibres in long-haul networks. In this paper the investigations on DWDM-OADM optical ring network for six nodes, 30 wavelengths on unidirectional non linear single mode fiber at data rates of 10Gbps for BPSK modulation format has been reported. The main target of this research work is to increase the data rate from 100Gbps on optical fiber with different ring span length. In this manuscript we investigate the performance on the basis of Q factor, Eye diagram, timing Jitter and BER from the simulation setup designed on DWDM based Metropolitan ring network that can provide data transfer rate up to 300Gbps.The performance is quantitatively analyzed for above network setup for ring span lengths of 50km, 60km & 70km respectively.