Prof. Dr. Osman Nuri UÇAN2025-08-192025-08-19https://dspace.academy.edu.ly/handle/123456789/1720Examining the non-linear effects of optical fibre is the general methodology of this thesis in order to develop a conceptual knowledge of optical fibre systems. MATLAB Simulink was used to give the modelling of the optical fibre infrastructure. The findings demonstrated that the transmission reach increased in the case of every span lengths when the styles were examined at the same coding rate and bit rate for the WDM instanceThere are two communication technologies used to build data communication networks nowadays which are copper wire cable and fibre optic cable. The primary factor behind the broad utilization of fibre optic systems is the high and steadily rising demand from businesses and consumers for more advanced internet and telecommunications solutions, with fibre optic system able to deliver the necessary data capacity (higher than both copper cable and wireless systems).COMMERCIAL VEHICLES