Analysis of laser radiation using the Nonlinear Fourier transform

S Sugavanam, MK Kopae, J Peng, JE Prilepsky… - Nature …, 2019‏ - nature.com
Modern high-power lasers exhibit a rich diversity of nonlinear dynamics, often featuring
nontrivial co-existence of linear dispersive waves and coherent structures. While the …

Signal-noise interaction in optical-fiber communication systems employing nonlinear frequency-division multiplexing

M Pankratova, A Vasylchenkova, SA Derevyanko… - Physical Review …, 2020‏ - APS
We address the properties of nonlinear-Fourier-transform (NFT)-based fiber-optic
communications systems and, particularly, study how the presence of noise deteriorates the …

Exponential fourth order schemes for direct Zakharov-Shabat problem

S Medvedev, I Vaseva, I Chekhovskoy, M Fedoruk - Optics Express, 2019‏ - opg.optica.org
Nowadays, improving the accuracy of computational methods to solve the initial value
problem of the Zakharov-Shabat system remains an urgent problem in optics. In particular …

Review on optical solitons for long haul transmission

P Kaur, D Dhawan, N Gupta - Journal of Optical Communications, 2023‏ - degruyter.com
Fiber optics telecommunication is the currently established backbone infrastructure for most
of the information flow across the world. New services and applications are causing an …

From modulational instability to focusing dam breaks in water waves

F Bonnefoy, A Tikan, F Copie, P Suret, G Ducrozet… - Physical Review …, 2020‏ - APS
We report water wave experiments performed in a long tank where we consider the
evolution of nonlinear deep-water surface gravity waves with the envelope in the form of a …

Neural networks for computing and denoising the continuous nonlinear Fourier spectrum in focusing nonlinear Schrödinger equation

EV Sedov, PJ Freire, VV Seredin, VA Kolbasin… - Scientific Reports, 2021‏ - nature.com
We combine the nonlinear Fourier transform (NFT) signal processing with machine learning
methods for solving the direct spectral problem associated with the nonlinear Schrödinger …

Mitigating the impact of noise on nonlinear frequency division multiplexing

S Civelli, E Forestieri, M Secondini - Applied Sciences, 2020‏ - mdpi.com
In the past years, nonlinear frequency division multiplexing (NFDM) has been investigated
as a potentially revolutionary technique for nonlinear optical fiber communication. However …

Neural network for calculating direct and inverse nonlinear Fourier transform

EV Sedov, IS Chekhovskoy, JE Prilepsky - Quantum Electronics, 2021‏ - iopscience.iop.org
A neural network architecture is proposed that allows a continuous nonlinear spectrum of
optical signals to be predicted and an inverse nonlinear Fourier transform (NFT) to be …

Nonlinear frequency-division multiplexing: theoretical aspects, numerical algorithms, and experimental demonstration

S Civelli - 2019‏ - tesidottorato.depositolegale.it
The exponential growth of global data traffic is challenging the optical network, currently
limited by Kerr nonlinearity. This thesis investigates a novel transmission paradigm for long …

[HTML][HTML] Evolution of Spatiotemporal Intensity of Partially Coherent Pulsed Beams with Spatial Cosine-Gaussian and Temporal Laguerre–Gaussian Correlations in Still …

C Ding, O Korotkova, D Horoshko, Z Zhao, L Pan - Photonics, 2021‏ - mdpi.com
A new family of partially coherent pulsed beams with spatial cosine-Gaussian and temporal
Laguerre–Gaussian correlations, named spatial cosine-Gaussian and temporal Laguerre …