For propagating pulsesand power for different fibers. The

For long distance, high bandwidth, large capacity, intenseoptical power communication system operating at speed aboutgigabit per second or higher, optical transmission is anadvance medium. This high speed optical fiber transmissionsystem face an interruption in the form of GVD that limits therates in optical transmission systems 1-2. On the other hand,for long distance data transmission in optical fiber, the fibermust carry high input power. And at high input power,nonlinear effects are commenced in the optical fiber that inturn limits the system performance 3. SPM is one of therelevant nonlinear effects that influence the systemperformance greatly 4-5. When the Kerr non-linearity are theresult of the pulses own intensity then the SPM effectsobserved. The SPM produces spectral changes in the pulseshape with the simultaneous effect of chirping and GVD inhigh speed optical transmission systems 6-9. It is possible tocompensate the dispersion using different technologies inoptical channel 10-11. Hamza et al. (2014) evaluatedperformance behavior of chirped and un-chirped pulses forsingle mode optical fiber 12. Pre-chirping can be used toinhibit waveform distortion caused by SPM–GVD effect 13.Soliton propagation due to interaction between SPM and GVDexhibits in the anomalous regime with LEAF 14. Most of theanalysis is usually performed considering SPM and GVDalone. So, it is essential to analyze the combined effect ofchirping, SPM and GVD for different fibers to interpret theperformance limitations in high speed transmission systems.In this paper, we have investigated the effect of SPM inpresence of chirping and GVD in WDM optical transmissionsystem using 3-different types of fiber such as standard singlemode fiber, large effective area fiber, and nonzero dispersionshifted fiber for two different dispersion regimes. The maingoal of this paper is to analyze graphically the simultaneouseffects of chirping, SPM and GVD on the propagating pulsesand power for different fibers. The initial pulse distribution istaken as a chirped Gaussian pulse shape. Due to computationalcomplexity, we could not solve the nonlinear Schrodingerequation (NLSE) analytically in a close form. In this work,NLSE has been solved numerically by split step Fouriertechnique 15 and the combined effect of chirping, SPM andGVD has been visualized for different fibers of opticaltransmission system through varying various parameters.