Abstract
In this paper, the 16 channel and 32 channel DWDM systems at 20 Gbps have been investigated for hybrid amplifiers. The performance has been analyzed on the basis of transmission distance. The comparison of BER and Q-factor for two hybrid amplifiers EDFA+RAMAN and RAMAN+EDFA at different transmission distance is done. It is observed that for 16 × 20 Gbps and 32×20Gbps DWDM system using EDFA+RAMAN provides better results than the DWDM system using RAMAN+EDFA. The analysis is done using OptiSystem 7.0 simulator.
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