Hybrid Raman/EDFA optical fiber amplifiers configuration in amplified ultra wide band wavelength division multiplexed systems

Abstract This paper presented the hybrid Raman and erbium doped fiber amplifiers in amplified wavelength division multiplexed systems. Important role of singly and hybrid light amplifiers are clarified in the presented work. EDFA/RAMAN based average power model based Raman amplifiers are used for strength the signal power levels. CW laser with return to zero code are employed in amplified multiplexed systems. The optimum EDFA optical amplifiers length is used to strength the signal through the optical fiber channel. The max. signal quality and min. error rates are obtained with the presented model. By the assistance of multi pumped lasers for the flat gain in the hybrid EDFA/Raman light amplifiers.