Design and performance analysis of WDM optical Communication system with EDFA-DCF and FBG for dispersion compensation using $8\mathrm{x}5$ Gbps data rate

The Requirement of system capacity is increasing due to the rise in the number of computer users. This can be achieved by optical communication using WDM technology. Using WDM technology multiply many carrier signals onto a single optical fiber using different wavelength to boost up capacity. Dispersion effects the transmission of the signal along an optical fiber. In the proposed model, three techniques for dispersion compensation (per, post, and mix) has been designed using dispersion compensation fiber (DCF) in 8 channel WDM. According to this topology with the help of 5 Gbps transmission data rate model is compared non-return-to-zero (NRZ), return-to-zero (RZ) pulse in which signal mode fiber (SMF) has been considered using the length of 120 km. The results such as Q-factor and bit error rate (BER) represent pre-compensation scheme using RZ gives better results and also output power at EDFA calculate using optisystem 7.0 software.