A New Proposed Model for Dispersion Compensation via Linear Chirped Fiber Bragg Grating

In recent years, the technology of fiber optics communication has experienced immense evolution due to the huge data rates and transmission capacity requirements of emerging communication systems.However, nonlinear effects and dispersion which are challenging impairments are among the main issues that have an impact on the optical fiber systems performance.As a result, to solve this challenging issue, the utilization of a dispersion compensating technique such as Dispersion Compensating Fiber (DCF) or Fiber Bragg Grating (FBG) is an urgent necessity.In this paper, a new model for dispersion compensation utilizing Fiber Bragg Grating is proposed.Tanh apodization and linear chirp functions are added to the proposed model to provide a Linear Chirped FBG.In addition, it has been used with a Gaussian filter of low pass type to enhance the proposed system in terms of performance parameters such as: BER, Q-factor, and eye-diagram.These parameters are the most significant performance measurements that impact any optical communication system.The proposed model is simulated via Optisystem and analyzed via Python.Simulation results for different lengths of fiber show that the BER, Q-factor, and eye diagrams of the proposed model have a better performance compared to that of the other systems where either no FBG is applied or a traditional uniform FBG is used.The Q-factor values and BER values for 40km fiber length were 29.5524 and 9.3407*10 -182 for the system model proposed in this study, 13.9969 and 6.5823*10 -45 for the system with uniform FBG, and 5.0736 and 1.1792*10 -7 for the system without FBG.Finally, the eye diagrams of the proposed model also show a better opening compared to other systems.