Celebrating the 20^ th anniversary of Optics Express, this paper reviews the evolution of
optical fiber communication systems, and through a look at the previous 20 years attempts to …

The last few years have seen a wealth of new nonlinear propagation modeling results
appear in the literature, especially regarding coherent systems operating in the absence of …

In recent years, space-division multiplexed (SDM) transmission in multimode and multicore
fiber structures has been attracting growing interest as a mean of scaling the capacity of the …

We review the modeling of inter-channel nonlinear interference noise (NLIN) in fiber-optic
communication systems, focusing on the accurate extraction of the NLIN variance, the …

We explore the potential benefits of digital nonlinearity compensation (NLC) techniques in
fully loaded coherent wavelength-division multiplexed (WDM) transmission systems. After …

We investigated the reach increase obtained through nonlinearity mitigation by means of
transmission symbol rate optimization (SRO). First, we did this theoretically and simulatively …

In order to realize probabilistically shaped signaling within the probabilistic amplitude
shaping (PAS) framework, a shaping device outputs sequences that follow a certain …

Since its early commercial deployment in the late 1980s, optical fiber has evolved to become
the predominant carrier of the globe's communications. Yet, after accommodating the world's …

Operators are pressured to maximize the achieved capacity over deployed links. This can be
obtained by operating in the weakly nonlinear regime, requiring a precise understanding of …

We investigate upper bounds for single-channel and multi-channel digital back-propagation
(BP) in fully loaded wavelength-division multiplexed systems. Using the time-domain model …