We numerically demonstrate an all-optical nonlinearity pre-compensation module for state-of-the-art long-reach Raman-amplified unrepeatered links. The compensator design is optimized in terms of propagation symmetry to maximize the performance gains under WDM transmission, achieving 4.0dB and 2.6dB of SNR improvement for 250-km and 350-km links.
@article{arxiv.2101.10064,
title = {All-Optical Nonlinear Pre-Compensation of Long-Reach Unrepeatered Systems},
author = {Pawel M. Kaminski and Tiago Sutili and José Hélio da Cruz Júnior and Glauco C. C. P. Simões and Francesco Da Ros and Metodi P. Yankov and Henrik E. Hansen and Anders T. Clausen and Søren Forchhammer and Leif K. Oxenløwe and Rafael C. Figueiredo and Michael Galili},
journal= {arXiv preprint arXiv:2101.10064},
year = {2021}
}