Explanipedia

Impact of filtering in optical coherent systems with finite-length equalizers: modeling and experimental verification Open

Pablo Torres‐Ferrera, Giuseppe Parisi, Giuseppe Rizzelli, Miquel Masanas, Roberto Gaudino , et al. · 2025

Modern ultra-high bit rate coherent transmission systems frequently operate under conditions where stringent optical and/or electrical filtering becomes a significant source of performance penalty. This is particularly evident when the end…

Demonstration of Converged Metro+Access Bidirectional Transmission Using Coherent Transceivers and ROADMs Open

Giuseppe Rizzelli, Marco Casasco, A. Pagano, E. Riccardi, Valter Ferrero , et al. · 2025

We present the experimental demonstration of high-speed transmission in downstream and upstream direction using off-the-shelf coherent transceivers in a 40-channel DWDM metro+access network configuration based on ROADMs for future all-opti…

Experimental Verification of an Analytical Model of Filtering Impact on Coherent Digital Subcarriers Systems Open

Pablo Torres‐Ferrera, Gianluca Parisi, Jacqueline E. Sime, Carlos Castro, Roberto Gaudino , et al. · 2025

We present the experimental verification of a developed analytical model to estimate the filtering penalty in digital subcarrier coherent systems, reporting a high model accuracy with a maximum error in sensitivity penalty of 0.4 dB.

Metro-Passive Optical Network Convergence: 400 Gbps Fully Coherent Transmission Using Pre-Commercial Transceivers Open

Mariacristina Casasco, Giuseppe Rizzelli, A. Pagano, Emilio Riccardi, Valter Ferrero , et al. · 2024

The capacity of passive optical networks (PONs) is continuously increasing, and it has been standardized up to 50 Gbit/s. The two main standardization organizations, IEEE and ITU-T, are actively working on the next-generation PON, which ap…

Polarization-Based Fiber Optic System for Debris Flow Early Warning: On-Field Demonstration Open

S. Pellegrini, Giuseppe Rizzelli, Marco Barla, Roberto Gaudino · 2024

Naturally occurring mass transport events can endanger human life and infrastructure integrity, especially in mountain areas often affected by landslides, debris flows, and avalanches. Currently available hazard detection systems can great…

Filtering Power Penalty Evaluation of Coherent Systems Affected by ASE and Transceiver Noise Open

Pablo Torres‐Ferrera, Giuseppe Rizzelli, Antonio Napoli, Roberto Gaudino · 2024

Experimental Demonstration of In-Field 400G Coherent Metro-Access Convergence Open

Giuseppe Rizzelli, Marco Casasco, A. Pagano, Valter Ferrero, Roberto Gaudino · 2024

We present an experimental demonstration and analytical scaling of optically amplified metro combined with PON access transmission over installed fibers, using coherent 50GBaud PM-16QAM and discuss the technical feasibility of future 400G …

Erbium-Doped LiYF4 as a Potential Solid-State Frequency Reference: Eligibility and Spectroscopic Assessment Open

Erik Cerrato, Chiara Gionco, Giuseppe Rizzelli, Cecilia Clivati, Roberto Gaudino , et al. · 2023

Time and frequency metrology is a key enabler for both forefront science and innovation. At the moment, atomic frequency standards (AFSs) are based on atoms either in the vapor phase or trapped in magneto-optical lattices in a vacuum. Find…

PGC 2023 TOC Open

Giuseppe Rizzelli, Roberto Gaudino, Qiuzhuo Deng, Lu Zhang, Kangpeng Ye , et al. · 2023

Experimental Demonstration of a 400 Gb/s Full Coherent Transmission in an in-field Metro-Access scenario Open

Mariacristina Casasco, Giuseppe Rizzelli, A. Pagano, R. Mercinelli, Maurizio Valvo , et al. · 2023

Conference Paper, published at conference 2023 23rd International Conference on Transparent Optical Networks (ICTON)

Algorithm Optimization for Rockfalls Alarm System Based on Fiber Polarization Sensing Open

S. Pellegrini, Giuseppe Rizzelli, Marco Barla, Roberto Gaudino · 2023

The mountain scenario is often subject to catastrophic events such as rockfalls and avalanches, potentially dangerous for both people and civil infrastructures. Early-warning alarm systems that in case of such events can immediately turn o…

An Analytical Model for Performance Estimation in High-Capacity IMDD Systems Open

Giuseppe Rizzelli, Pablo Torres‐Ferrera, F. Forghieri, Roberto Gaudino · 2023

In this paper, we propose an analytical model to estimate the signal-to-noise ratio (SNR) at the output of an adaptive equalizer in intensity modulation and direct detection (IMDD) optical transmission systems affected by shot noise, therm…

A new real-time debris flow and avalanches detection system based on optical fiber sensing Open

Santina Aiassa, Francesco Antolini, Marco Barla, Alessandra Insana, Roberto Gaudino , et al. · 2023

The real-time detection of potentially destructive water, earth and snow mixtures such as debris flow and avalanches is a topic of growing interest to mitigate the risk in anthropized areas such as the Alpine region. In view of this, a new…

Analysis and experiments on C band 200G coherent PON based on Alamouti polarization-insensitive receivers Open

Abir Hraghi, Giuseppe Rizzelli, A. Pagano, Valter Ferrero, Roberto Gaudino · 2022

Passive optical network (PON) based on coherent detection has attracted a great deal of attention in recent years as a future solution for 100+ Gbps per wavelength. Particularly for 200G-PON, one of the most attractive options would be to …

Coherent Communication Over Multi Mode Fibers for Intra-Datacenter Ultra-High Speed Links Open

Giuseppe Rizzelli, Pablo Torres‐Ferrera, F. Forghieri, A. Nespola, Andrea Carena , et al. · 2022

Multimode fibers (MMFs) links using vertical cavity surface-emitting lasers (VCSELs) are still the solution of choice for today's data center shorter distances thanks to their low cost and robustness. Currently, the market is moving toward…

Advances in Optical Fiber Communications Open

Giuseppe Rizzelli · 2022

Given the increasing importance of a globally interconnected world, driven by modern digital services and the need for fast and reliable access to digital resources, communications networks are one of the key infrastructures in today’s soc…

200 Gbps/λ PON Downstream C-Band Direct-Detection Links with ≥29 dB Power Budget Open

Haoyi Wang, Pablo Torres‐Ferrera, Giuseppe Rizzelli, R. Mercinelli, Valter Ferrero , et al. · 2022

In this paper we present the simulative analysis of a 200 Gbps per wavelength (λ) 8-level pulse amplitude modulation (PAM-8) downstream communication over up to 20 km single mode fiber (SMF) in C-band based on direct detection (DD) achievi…

An Analytical Model for SNR Prediction in Coherent Systems after generic Jones Matrices Open

Giuseppe Rizzelli, Pablo Torres‐Ferrera, Roberto Gaudino · 2022

In this letter, we propose the extension of a previously presented analytical model for the estimation of the signal-to-noise ratio (SNR) at the output of an adaptive equalizer in coherent optical transmission systems when transmission is …

100 Gbps/λ C-Band CD Digital Pre-Compensated and Direct-Detection Links With Simple Non-Linear Compensation Open

Haoyi Wang, Pablo Torres‐Ferrera, Giuseppe Rizzelli, Valter Ferrero, Roberto Gaudino · 2021

In the scenario of downstream Passive Optical Networks (PON), we analyze through simulations and experiments a 100 Gbps/λ link using digital signal processing (DSP) over up to 50 km single mode fiber (SMF) in C-band. In particular, we prop…

Scaling Laws for Unamplified Coherent Transmission in Next-generation\n Short-Reach and Access Networks Open

Giuseppe Rizzelli, A. Nespola, Stefano Straullu, Roberto Gaudino · 2021

International standardization bodies (IEEE and ITU-T) working on the\nevolution of transmission technologies are still considering traditional direct\ndetection solutions for the most relevant short reach optical link\napplications, that a…

Scaling Laws for Unamplified Coherent Transmission in Next-generation Short-Reach and Access Networks Open

Giuseppe Rizzelli, A. Nespola, Stefano Straullu, Roberto Gaudino · 2021

International standardization bodies (IEEE and ITU-T) working on the evolution of transmission technologies are still considering traditional direct detection solutions for the most relevant short reach optical link applications, that are …

Vibration Sensing for Deployed Metropolitan Fiber Infrastructure Open

Ilaria Di Luch, Pierpaolo Boffi, Maddalena Ferrario, Giuseppe Rizzelli, Roberto Gaudino , et al. · 2021

The optical fiber deployed in the metropolitan infrastructure carrying high-speed WDM traffic data is used also for network surveillance, identifying and localizing the onset of vibrations and dynamic stress events, potentially dangerous f…

Open-Cavity Spun Fiber Raman Lasers with Dual Polarization Output Open

Javier Nuño, Giuseppe Rizzelli, Francesca Gallazzi, Francisco Prieto‐Castrillo, C. Pulido , et al. · 2017

Raman cell optimisation for distributed amplification based transmission systems Open

Giuseppe Rizzelli, Francesca Gallazzi, Paweł Rosa, Pedro Guillén, Juan Diego Ania‐Castañón · 2017

Commercially available Raman fiber pumps display relatively high Relative Intensity Noise (RIN) that gets transferred to the output signal in systems relying on Raman distributed amplification. This has been shown to drastically hinder per…

Dataset CHAOS project Open

Juan Diego Ania‐Castañón, Paweł Rosa, Pedro Corredera, Giuseppe Rizzelli, Francesca Gallazzi · 2017

Data set collecting the list of publications obtained within the CHAOS project, identifiying the relevant DOI or open-access references for the corresponding publications

Unrepeatered 64QAM over SMF-28 using Raman Amplification and Digital Backpropagation Open

Paweł Rosa, Giuseppe Rizzelli, Xiaodan Pang, Oskars Ozoliņš, Aleksejs Udaļcovs , et al. · 2017

Unrepeatered transmission over SMF-28 fibre is investigated using Raman based amplification. Experiments and simulations demonstrate a transmission up to 200 km (41 dB) span length using 28Gbaud 64 QAM modulation employing digital back pro…

Data underpinning article "Performance optimization in ultra-long Raman laser amplified 10x30 GBaud DP-QPSK transmission: Balancing RIN and ASE noise" Open

Francesca Gallazzi, Giuseppe Rizzelli, Md Asif Iqbal, Mingming Tan, Paul Harper , et al. · 2017

FBG reflectivity impact on RIN in ultralong laser amplifiers Open

Giuseppe Rizzelli, Md Asif Iqbal, Francesca Gallazzi, Paweł Rosa, Mingming Tan , et al. · 2016

42nd European Conference on Optical Communication, Dusseldorf, Germany, \n18-22 Sept. 2016 http://ieeexplore.ieee.org/document/7767668/

Link optimisation for DWDM transmission with an optical phase conjugation Open

Paweł Rosa, Giuseppe Rizzelli, Juan Diego Ania‐Castañón · 2016

6 pags., 6 figs. .-- OCIS codes: (060.1660) Coherent communications; (060.2320) Fibre optics amplifiers and \noscillators; (060.4370) Nonlinear optics, fibers. .-- 18th International Conference on Transparent Optical Networks (ICTON), Tren…

Impact of Front-FBG Reflectivity in Raman Fiber Laser Based Amplification Open

Giuseppe Rizzelli, Md Asif Iqbal, Paweł Rosa, Mingming Tan, Lukasz Krzczanowicz , et al. · 2016

2 pags., 3 figs. .-- OCIS codes: (060.2320) Fiber optics amplifiers and oscillators; (060.2330) Fiber optics communications. .-- CLEO: Science and Innovations, San Jose, California United States, 5–10 June 2016

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