Comparison of Multi-Channel Nonlinear Equalization using Inverse Volterra Series versus Digital Backpropagation in 400 Gb/s Coherent Superchannel

Conference: ECOC 2016 - 42nd European Conference on Optical Communication
09/18/2016 - 09/22/2016 at Düsseldorf, Deutschland

Proceedings: ECOC 2016

Pages: 3Language: englishTyp: PDF

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Vgenopoulou, Vassiliki; Tomkos, Ioannis (Athens Information Technology, 44 Kifissias Avenue, 15125 Marousi, Greece)
Erkilinc, M. Sezer; Killey, Robert I. (Optical Networks Group, Dept. of Electronic and Electrical Eng., UCL, London WC1E7JE, UK)
Jaouen, Yves (LTCI, CNRS, Telecom ParisTech, Université Paris Saclay, 75013, Paris, France)
Roudas, Ioannis (Corning Inc., One Riverfront Plaza, Corning NY 14831, USA)

We investigate the performance of a Volterra-based nonlinear equalizer and the digital backpropagation (DBP) method in multi-channel nonlinear equalization after 20×80 km transmission distance. The Volterra equalizer, which operates with single-step-per-span, performs similarly compared to DBP with 40 steps-per-span.