Digital signal processing for fiber nonlinearities [Invited] clickable element to expand a topic
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Optical communication systems represent the backbone of modern communication
networks. Since their deployment, different fiber technologies have been used to deal with …

Fiber nonlinearity is one of the major limitations to the achievable capacity in long distance
fiber optic transmission systems. Nonlinear impairments are determined by the signal …

Digital coherent transceivers have revolutionized optical fiber communications due to their
superior performance offered compared to intensity modulation and direct detection based …

We experimentally demonstrate a decision-directed, intra-and inter-subcarrier nonlinearity
mitigation scheme based on first order perturbation. We achieve 0.9 dB Q 2-factor …

We introduce low complexity machine learning method method (based on lasso regression,
which promotes sparsity, to identify the interaction between symbols in different time slots …

We report on the evolution of the longest segment of FASTER cable at 11,017 km, with
8QAM transponders at 4b/s/Hz spectral efficiency (SE) in service. With offline testing, 6 …

We propose a modification of the conventional perturbation-based approach of fiber
nonlinearity compensation that enables straight-forward implementation at the receiver and …

The advent of silica-based low-cost standard single-mode fibers revolutionized the whole
communication industry. The deployment of optical fibers in the networks induces a …

In this work, a perturbation-based neural network (P-NN) scheme with an embedded
bidirectional long short-term memory (biLSTM) layer is investigated to compensate for the …