Explanipedia

Weather-Adaptive Multi-Step Forecasting of State of Polarization Changes in Aerial Fibers Using Wavelet Neural Networks Open

Khouloud Abdelli, Matteo Lonardi, J. Gripp, Samuel Olsson Fabien Boitier, Patricia Layec · 2024

We introduce a novel weather-adaptive approach for multi-step forecasting of multi-scale SOP changes in aerial fiber links. By harnessing the discrete wavelet transform and incorporating weather data, our approach improves forecasting accu…

Unsupervised Anomaly Detection and Localization with Generative Adversarial Networks Open

Khouloud Abdelli, Matteo Lonardi, Jurgen Gripp, Samuel L. I. Olsson, Fabien Boitier , et al. · 2024

We propose a novel unsupervised anomaly detection approach using generative adversarial networks and SOP-derived spectrograms. Demonstrating remarkable efficacy, our method achieves over 97% accuracy on SOP datasets from both submarine and…

Receiver-Based Experimental Estimation of Power Losses in Optical Networks Open

Andrée le May, Fabien Boitier, Élie Awwad, Pétros Ramantanis, Matteo Lonardi , et al. · 2021

International audience

Measurement of In-Band Optical Noise Spectral Density Open

Sylvain Almonacil, Matteo Lonardi, Philippe Jennevé, Nicolas Dubreuil · 2021

We present a method to measure the spectral density of in-band optical transmission impairments without coherent electrical reception and digital signal processing at the receiver. We determine the method's accuracy by numerical simulation…

Estimation de pertes de puissances pour les réseaux optiques Open

Alix May, Fabien Boitier, Élie Awwad, Pétros Ramantanis, Matteo Lonardi , et al. · 2021

Nous proposons une methode pour estimer l'amplitude d'une chute de puissance dans un reseau fibre en utilisant un estimateur de profils longitudinaux de puissance base sur l'analyse de signal recu. Celle-ci s'appuie notamment sur une calib…

Experimental investigations on power spectral density estimation in heterogeneous dispersion unmanaged transmissions Open

Matteo Lonardi, Pétros Ramantanis, Philippe Jennevé, S. Bigo · 2020

In this paper, we present and verify by experiments a semi-analytical model to estimate the power spectral density of the noise-to-signal ratio in dispersion unmanaged transmissions over heterogeneous fiber types. The model combines an exp…

Quality of transmission estimation and monitoring in modern optical transmission systems Open

Matteo Lonardi · 2020

The thesis focuses on performance assessment, estimation, and monitoring in modern optical communication systems that are developed to fight the expected capacity shortage. The thesis is divided into two parts. In the first, we study the p…

The Generalized Droop Formula Open

A. Bononi, Jean‐Christophe Antona, Matteo Lonardi, Alexis Carbó Meseguer, Paolo Serena · 2019

We present a theoretical model that fully supports the recently disclosed generalized droop formula (GDF) for calculating the signal-to-noise ratio (SNR) of constant-output power (COP) amplified dispersion-uncompensated coherent links oper…

Analysis of modal coupling due to birefringence and ellipticity in strongly guiding ring-core OAM fibers Open

Gianluca Guerra, Matteo Lonardi, Andrea Galtarossa, Leslie A. Rusch, A. Bononi , et al. · 2019

After briefly recalling the issue of OAM mode purity in strongly-guiding ring-core fibers, this paper provides a methodology to calculate the coupling strength between OAM mode groups due to fiber perturbations. The cases of stress birefri…

The European Project Roam "Revolutionising Optical Fiber Transmission And Networking Using The Orbital Angular Momentum Of Light": Motivations And Recent Outcomes Open

Ning Zhang, Jiangbo Zhu, Malik Muhammad, Gernot Goeger, Charalambos Klitis , et al. · 2017

The motivaitons and the last results of the ROAM project regarding the exploitation of the orbital angular momentum of light for fiber transmission and switching.

Mode Coupling Analysis of Hollow Ring-Core Fibers for OAM Transmission Open

Matteo Lonardi, Gianluca Guerra, Leonardo Marcon, Reza Mirzaei Nejad, Marco Santagiustina , et al. · 2017

<p>We present an analytical and numerical description of coupling between OAM modes in hollow ring-core fibers affected by stress birefringence and ellipticity. The analysis paves the way to a better modeling of propagation in these …

Mode Coupling Analysis of Hollow Ring-Core Fibers for OAM Transmission Open

Matteo Lonardi, Gianluca Guerra, Leonardo Marcon, Reza Mirzaei Nejad, Marco Santagiustina , et al. · 2017

We present an analytical and numerical description of coupling between OAM modes in hollow ring-core fibers affected by stress birefringence and ellipticity The analysis paves the way to a better modeling of propagation in these fibers.

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