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Mitigation of Intra-Channel Nonlinearites Using a Frequency-Domain Volterra Series Equalizer

Guiomar, F. P. ; Reis, J.D. ; Teixeira, A. ; Pinto, A. N.

Mitigation of Intra-Channel Nonlinearites Using a Frequency-Domain Volterra Series Equalizer, Proc European Conf. on Optical Communications - ECOC, Geneve, Switzerland, Vol. CD, pp. Tu.6.B.1 - , September, 2011.

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Abstract
We apply a frequency-domain Volterra series nonlinear equalizer to a 20 Gbaud NRZ-QPSK signal propagated over 1600 km. Using 2 samples/symbol we obtain a 2 dB improvement on the nonlinear tolerance over backward propagation split-step Fourier method.