AN ANALYSIS OF LONG-HAUL OPTICAL FIBERS COMMUNICATION DISTORTIONS WITH RESPECT TO PERFORMANCE IMPROVEMENT IN CHANNEL BANDWIDTH

Abstract

Long-Haul (LH) and Ultra Long-Haul (ULH) fiber backbone carriers employ WDM/DWDM with single mode fiber over C-band and L-band. Nonlinear effects reduce signal quality in these fibers. The nonlinear length (LNL =1/γ P0) for a given γ of 1.2 W-1km-1 is determined by transmission power intensity. By increasing power from 2mW to 20mW, the NL effect reduces its distance of occurrence from 417 kilometers to 42 km for SMF. This means that increasing transmission power reduces signal transmission range and causes an early NL impact. Hence, nonlinear degradation analysis and compensating approaches are quite significant. In this research, we examine NL effects and build a DBP compensation approach using an upgraded SSFM algorithm. Simulations work was carried out using the industry-proven newest design tool Opti System and MATLAB. The article concludes by estimating the electronic computing burden of DBP.