Dense wavelength division multiplexing (DWDM) is a crucial optical system that processes multiplexing many distinct wavelengths toward a single optical fiber. In this article, 64 channels DWDM system model with a dispersion compensation mechanism. The dispersion compensation technique limits the pulse broadening effect of transmitted light in the optical link. To solve the dispersion effect, DCF introduced are modelled, analyzed, and performed to investigate the 64 channels DWDM system using DCF for NRZ Modulation Scheme at Different Bit Rate with various power levels. The proposed model for 10 to 40 Gbps using an NRZ modulation scheme with erbium doped fiber amplifier (EDFA) over 40 to 160 km transmission distance of single mode fiber and 8 to 32 km dispersion compensation fiber (DCF). The performance of the designed model is two different input transmitter power levels in terms of bit error rate (BER), Q-factor, eye height and threshold.

Keywords: Dense wavelength division multiplexing (DWDM, dispersion effect, erbium doped fiber amplifier, bit error rate, Q-factor, NRZ Modulation, Optisystem software.