The Influence of Bit Error Rate on DWDM System with Different Pumping Powers in EDFA

摘要

This article focuses on the simulation of four-channel DWDM (Dense Wavelength Division Multiplexing) system with the spacing of 4 nm and the speed of 10 Gbps. It underlines the error rate BER (Bit Error Rate) which changes with the input power of fibre amplifier EDFA (Erbium Doped Fibre Amplifier) for the respective channel of DWDM. Nowadays while designing the DWDM it cannot be done without software tools simulating a real network to avoid possible mistakes which could occur before the actual construction of communication systems. Simulation solves the creation of DWDM from 1554 to 1566 nm with the best error rate for the respective channel using single-mode optical fibre 40 km long with measurable attenuation constant according to ITU-T G-652.D.