Improving DWDM system performance through EDFA and DCF strategies

Abstract

In modern optical communication, the DWDM systems allow high-speed data transmission over long distances. The undesired phenomena like dispersion and nonlinearity of optical fiber affect the system performance and reduce the signal quality. This work examines improving DWDM system performance through EDFA and DCF strategies. An eight-channel DWDM system at 10 Gbps per channel is tested under different EDFA designs. The results showed that adding DCF to the system improves signal quality. Additionally, the booster amplifier setup performed better than other positions of EDFA in the optical link. Moreover, using a bidirectional pumping schema has a higher Q-factor average with more stability than a forward pumping configuration. Also, the pump wavelength at 1480 nm always achieved a good performance compared to 980 nm.

Keywords

• wavelength division multiplexing
• EDFA
• non-linear effects

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