Probabilistic shaping and forward error correction for fiber-optic communication systems

G Böcherer, P Schulte, F Steiner - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
This tutorial paper provides a foundation for integrating probabilistic shaping (PS) and
forward error correction (FEC). A layered PS-FEC architecture consisting of a PS encoder …

Introducing enumerative sphere shaping for optical communication systems with short blocklengths

A Amari, S Goossens, YC Gültekin… - Journal of Lightwave …, 2019 - opg.optica.org
Probabilistic shaping based on constant composition distribution matching (CCDM) has
received considerable attention as a way to increase the capacity of fiber optical …

High-cardinality geometrical constellation shaping for the nonlinear fibre channel

E Sillekens, G Liga, D Lavery… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
This paper presents design methods for highly efficient optimisation of geometrically shaped
constellations to maximise data throughput in optical communications. It describes methods …

End-to-end optimization of coherent optical communications over the split-step Fourier method guided by the nonlinear Fourier transform theory

S Gaiarin, F Da Ros, RT Jones… - Journal of Lightwave …, 2020 - ieeexplore.ieee.org
Optimizing modulation and detection strategies for a given channel is critical to maximizing
the throughput of a communication system. Such an optimization can be easily carried out …

Analysis of nonlinear fiber interactions for finite-length constant-composition sequences

T Fehenberger, DS Millar, T Koike-Akino… - Journal of Lightwave …, 2020 - opg.optica.org
In order to realize probabilistically shaped signaling within the probabilistic amplitude
shaping (PAS) framework, a shaping device outputs sequences that follow a certain …

Polarization-ring-switching for nonlinearity-tolerant geometrically shaped four-dimensional formats maximizing generalized mutual information

B Chen, C Okonkwo, H Hafermann… - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
In this paper, a new four-dimensional 64-ary polarization ring switching (4D-64PRS)
modulation format with a spectral efficiency of 6 bit/4D-sym is introduced. The format is …

Kurtosis-limited sphere shaping for nonlinear interference noise reduction in optical channels

YC Gültekin, A Alvarado, O Vassilieva, I Kim… - Journal of Lightwave …, 2022 - opg.optica.org
Nonlinear interference (NLI) generated during the propagation of an optical waveform
through the fiber depends on the fourth order standardized moment of the channel input …

Interplay of probabilistic shaping and the blind phase search algorithm

DAA Mello, FA Barbosa, JD Reis - Journal of Lightwave …, 2018 - ieeexplore.ieee.org
Probabilistic shaping (PS) is a promising technique to approach the Shannon limit using a
typical constellation geometries. However, the impact of PS on the chain of signal …

Introducing 4D geometric shell shaping for mitigating nonlinear interference noise

S Goossens, YC Gültekin, O Vassilieva… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Four dimensional geometric shell shaping (4D-GSS) is introduced as an approach for
closing the nonlinearity-caused shaping gap. This format is designed at the spectral …

Analytical model of nonlinear fiber propagation for general dual-polarization four-dimensional modulation formats

Z Liang, B Chen, Y Lei, G Liga… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Coherent dual-polarization (DP) optical transmission systems encode information on the
four available degrees of freedom of an optical field: the two polarization states, each with …