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

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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.

© 2011 Optical Society of America

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