Optimization of hybrid Raman/erbium-doped fiber amplifier for multi terabits WDM system

In this paper, hybrid optical amplifier (Raman-EDFA) has been optimized using different optimized parameter such as noise figure, output power for fixed output power EDFA and Raman pump, pump power, Raman fiber length for Raman amplifier. It is being shown that when the optimized parameters are used, the hybrid optical amplifier provides better performance. Further we investigate the maximum single span distance using optimized hybrid optical amplifier. It has been shown that using optimized hybrid optical amplifier, the dispersions at 2, 4, 8, 16 ps/nm/km achieves 150, 150, 120 and 70 km of single span distance respectively with the acceptable bit error rate.