This report details the simulation of an Erbium-Doped Fiber Amplifier (EDFA) using Simulink, focusing on optical communication systems. The novelty of this work lies in integrating a complete set of parameter-driven laboratory. Amount of money, by way of direct subsidy or donation, from the EU budget to finance an action intended to help achieve an EU policy objective or the functioning of a body, which pursues an aim of general EU interest or has an objective forming part of, and supporting, an EU policy. The sum of the. Abstract - The paper introduces a plan and re-enactment of the optical way which incorporate straight and nonlinear impacts uti-lizing the MATLAB recreation apparatuses. Studying a 650mm fiber optic analog link and the relationship between input and received signals.