Study and simulation of DWDM star topology network

Abstract

Nowadays, optical networks employing Dense Wavelength Division Multiplexing (DWDM) are the adopted technique used in modern communication networks that can meet the everincreasing demand for bandwidth of the end users. The development of nodal elements, such as Optical Cross-Connects (OXC) for DWDM networks, has led to huge possible network architectures for the optical layer. In this project, we study the effect of the input power, transmission speed, pre- and postcompensation techniques on the performance of an eight channel DWDM star topology operating at wavelength 1550 nm and consisting of a central node to which 64 other nodes are connected. OptiSystem 7.0 is used for building the overall system and carrying out simulations. The performance analysis is based on eye diagrams, Q Factor and simulated Bit Error Rate (BER).