A Study on the Effectiveness of Turbo Equalization with FEC for Nonlinearity Compensatin in Coherent WDM Transmissions

We evaluate the performance improvement in the presence of fiber non- linearity obtained using a Turbo equalizer. Numerical simulation shows that Turbo equalization offers an improvement of 0.8 dB in a 100 Gb/s NZ-DSF transmission, even with only 5 taps for the MAP estimation.