1601, 2025
Author Archives: news_editor
1501, 2025
Next-Level Monitoring for Multi-Band Optical Networks
Soft failures in optical networks can be hard to diagnose due to limited physical layer insights. The B5G-OPEN project tackles this challenge with advanced channel monitoring solutions extending from C-band to multi-band systems. Please visit this link to read more about it! Figure: Multi-channel C+L experimental setup. Points #1, #2, #3 and #4 at the fiber span input underline where the power is estimated. Figure: Estimated power at fiber span
1301, 2025
Experimental Verification of Transient Control in Multi-Band Optical Networks
Ensuring stable performance in multi-band optical networks requires robust transient control mechanisms, especially when traffic disruptions lead to channel drops. In such scenarios, amplifiers must dynamically adjust their gain and tilt to maintain error-free transmission for surviving channels. Recent experimental verifications under the B5G-OPEN initiative highlight how these adjustments can be implemented effectively. Please visit this link to read more about it! Figure 1: Tilt and gain adjustment in a
0901, 2025
Enhancing Transmission Performance with Multi-Band Fiber Systems
Multi-band systems are revolutionizing the way fiber networks handle capacity expansion by utilizing additional wavelength bands. These systems offer cost-effective solutions that make use of existing infrastructure while addressing the increasing demand for data transmission. However, the introduction of additional bands such as the L-band and S-band alongside the C-band brings technical challenges, including managing signal distortions, nonlinear effects, and signal-to-noise ratio (SNR) reductions. Please visit this link to read
1712, 2024
Simplifying Optical Transport: The Optical Continuum Concept
The Optical Continuum is revolutionizing optical networks by enabling transparent interconnection across access, metro, and backbone segments. By reducing dependency on packet processing or regeneration while exploiting multiple optical bands, this innovative approach optimizes network performance while cutting opto-electro-optical regenerations and costs. Learn more about how this innovation is shaping the future!
1712, 2024
Transforming Metro Networks with Coherent Pluggable Transceivers!
Coherent pluggable modules like 400ZR+ and 800ZR+ are revolutionizing metro-core and metro-aggregation networks. In the B5G-OPEN project, we’ve explored the potential of packet-optical nodes (IPoWDM), reducing the need for standalone transponders and muxponders. Here’s how IPoWDM is a game-changer: 🔹 Cost Savings: Eliminate costly standalone optical components. 🔹 Space Efficiency: Free up central office space. 🔹 Ultra-low Latency: Achieve microsecond-level forwarding. 🔹 Seamless Integration: Optimize Ethernet and IP traffic. 🔹
2609, 2024
First B5G-OPEN Final Demo at ECOC 2024
The first B5G-OPEN final demo, performed at TIM premises in Turin, presented as Oral paper at the ECOC Conference “Field Trial of Transparent Multi-band Multi-domain Disaggregated IPoWDM Networks” The paper was ranked top scored and will get the invitation to JOCN!
2406, 2024
OFC Publication News: A Low-Cost Network Architecture Enabled by SOA-Based Filter-less OADMs and Digital Subcarrier Multiplexing
Abstract: Enabled by digital subcarrier multiplexing and filter-less architectures based on semiconductor optical amplifiers, our point-to-multipoint scheme can cover distances of up to 350 km with OSNR margins > 9.3 dB in typical BT horseshoe networks.
2406, 2024
OFC Publication News: Machine Learning-Driven Low-Complexity Optical Power Optimization for Point-to-Point Links Impaired by PDL
Abstract: We propose a strategy to dynamically adjust transmitted power solely based on the analysis of performance fluctuations due to polarization-dependent loss. We show that our method converges faster to optimum compared to a standard approach.
1206, 2024
OFC Publication News: On the Accuracy of Power Profile Estimation using MMSE or Deconvoluted Correlation-Based Profiles
Abstract: We evaluate the accuracy of the deconvolution of the longitudinal power profile computed using correlation-based method. We show that we obtain a similar accuracy to the MMSE approach in different cases.
0510, 2023
B5G-OPEN joint demo at ECOC 2023!
“Modular Control Plane Implementation for DisaggregatedOptical Transport Networks with Multi-band Support” Alessio Giorgetti(1), Andrea Sgambelluri(2), Filippo Cugini(3), Evangelis Kosmatos(4), Alexander Stavdas(4), Jose Manuel Martinez-Caro(5), Pablo Pavon(5), Oscar de Dios(6), Roberto Morro(7), Laia Nadal(8), Ramon Casellas(8) 1 CNR-IEIIT, Pisa, Italy. 2 Scuola Superiore Sant’Anna, Pisa, Italy. 3 CNIT, Pisa, Italy. 4 openlightcomm, Prague, Czech Republic. 5 e-lighthouse, Cartagena, Spain. 6 telefonica, Madrid, Spain. 7 tim, Torino, Italy. 8 CTTC, Barcelona, Spain
2606, 2023
B5G-OPEN booth @ EuCNC 2023
B5G-OPEN Project extremely active at the EuCNC 2023 Conference in Gotenburgh, Sweden. A dedicated B5G-OPEN booth presented all project activities and results. In addition, two Posters showed relevant project activities in the field of multiband data plane infrastructure and packet-optical networking. Furthermore, Emilio Riccardi (TIM) provided a B5G-OPEN talk on “An operators’ perspective on the migration to multi-band networks” at the Special Session entitled “Novel technologies in disaggregated packet-optical networks
0606, 2023
B5G-OPEN contributed to the new Whitepaper on beyond 5G KPI
Th eTest, Measurement and KPIs Validation Working Group of the 5G Public Private Partnership just released a new whiteppaer covering the Beyond 5G/6G KPI Measurement white_paper_b5g-6g_kpi_measurement_FINAL
1904, 2023
B5G-OPEN Plenary in Paris
Three days of brainstorming and fruitful discussions
2001, 2023
B5G-OPEN at OFC 2023 – Huge success!
The following 13 (!) B5G-OPEN works will be presented at the OFC Conference: #1 Velasco, P. Gonzalez, and M. Ruiz, “An Intelligent Optical Telemetry Architecture” Optical Fiber Communication Conference (OFC), 2023. Abstract: A distributed telemetry system is proposed with agents receiving and analyzing data before sending to a centralized manager. Intelligent data aggregation on optical constellations telemetry largely reduces data rate without introducing significant error. #2 Istvan Pelle, Francesco Paolucci, Balazs
1301, 2023
B5G-OPEN Plenary meeting on January 13
Full day brainstorming and fruitful discussions!
0411, 2022
1st B5G-OPEN Newsletter
Click here: B5G-OPEN Newsletter
0211, 2022
B5G-OPEN key innovations
The beyond 5G transmission scenario requires new and cost/power-effective solutions for mid/long term evolution while preserving the growing capacity per optical interfaces and cards. Under the Beyond 5G paradigm (i.e., beyond first focused and standalone 5G trials), the network should be capable of supporting massive small cell deployments, as well as the widespread end-to-end (E2E) support to heterogeneous use cases with considerably different requirements in terms of connectivity, latency and
2010, 2022
B5G-OPEN JLT Journal
Y. Wang, S. Bhat, N. Tessema, R. Kraemer, A. Napoli, G. Delrosso, and N. Calabretta “Ultrawide-band Low Polarization Sensitivity 3-μm SOI Arrayed Waveguide Gratings” https://ieeexplore.ieee.org/document/9760169 Abstract: An ultrawide-band (UWB), O- to L- band, polarization insensitive (PI) 1 × 12 100 GHz channel spacing arrayed waveguide grating (AWG) is designed and realized in 3-μm Silicon-on-Insulator (SOI) platform. PI and UWB operations are achieved by directly exploiting the UWB 3-μm PI silicon
2010, 2022
B5G-OPEN JOCN Journal
Francesco Paolucci; Andrea Sgambelluri; Moises Felipe Silva; Alessandro Pacini; Piero Castoldi; Luca Valcarenghi; Filippo Cugini “Peer-to-peer disaggregated telemetry for autonomic machine-learning-driven transceiver operation” https://ieeexplore.ieee.org/document/9812947 Abstract: Autonomic networking and monitoring will drive the evolution of next generation software defined networking (SDN) optical networks towards the zero touch networking paradigm. Optical telemetry services will play a key role to enable advanced network awareness at device and component granularity. Optical disaggregation is
2010, 2022
B5G-OPEN JLT Journal
Matheus Sena, Pratim Hazarika, Caio Santos, Bruno Correia, Robert Emmerich, Behnam Shariati, Antonio Napoli, Vittorio Curri, Wladek Forysiak, Colja Schubert, Johannes K. Fischer, Ronald Freund “Advanced DSP-based Monitoring for Spatially resolved and Wavelength-dependent Amplifier Gain Estimation and Fault Location in C+L band Systems” https://ieeexplore.ieee.org/document/9896153 Abstract — The development of efficient anomaly detection schemes is a key element for the implementation of autonomous optical networks as they can help telecom operators
2010, 2022
B5G-OPEN JOCN Journal
Filippo Cugini, Davide Scano, Alessio Giorgetti, Andrea Sgambelluri, Lorenzo De Marinis, Piero Castoldi, Francesco Paolucci “Telemetry and AI-based Security P4 Applications for Optical Networks” https://ieeexplore.ieee.org/document/9905738 This paper presents potentials and challenges of programmable packet-optical nodes encompassing coherent pluggable modules, applied in the context of optical metro networks. Two innovative applications of P4-based data plane programmability are then presented. The first targets the monitoring and processing of optical telemetry data/metadata directly in
2010, 2022
1010, 2022
B5G-OPEN at the Italian Internet Festival
Broad dissemination is part of a wider valorisation strategy for the B5G-OPEN results. B5G-OPEN is present at the Italian Internet Festival
1009, 2022
B5G-OPEN @ ECOC – Workshop on Multi-band
Workshop Description Multi-band (MB) expands the available capacity of optical fibres beyond traditional C and/or C+L bands by enabling transmission within S, E, and O bands – translating into a potential 10x capacity increase. MB networking raises challenges from both system and network perspectives. From the point of view of the former, MB networks require new key components, such as optical amplifiers, transceivers, and possibly MB reconfigurable add/drop multiplexers (MB
2505, 2022
B5G-OPEN JOCN Journal
“LPsec: A Fast and Secure Cryptographic System for Optical Connections,” by Iqbal, L. Velasco, N. Costa, A. Napoli, J. Pedro, and M. Ruiz, IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), 2022. We propose Light Path SECurity (LPsec), a secure cryptographic solution for optical connections that involves fast data encryption using stream ciphers and key exchange using Diffie-Hellman (DH) protocol through the optical channel.
2505, 2022
B5G-OPEN JOCN Journal
“Deep Learning -based Real-Time Analysis of Lightpath Optical Constellations [Invited],” by Ruiz, D. Sequeira, and L. Velasco, IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 14, pp. C70-C81, 2022. In-phase (I) and quadrature (Q) constellation analysis enables deep understanding of the characteristics of lightpaths. We present methods based on deep learning. https://opg.optica.org/jocn/abstract.cfm?uri=jocn-14-6-C70
2505, 2022
B5G-OPEN JOCN Journal
“On the Benefits of Point-to-Multipoint Coherent Optics for Multilayer Capacity Planning in Ring Networks with Varying Traffic Profiles” by P. Pavon-Marino, N. Skorin-kapov, M. V. Bueno-Delgado, J. Back, and A. Napoli Abstract: Point-to-Multipoint (P2MP) coherent optics using Digital Subcarrier Multiplexing (DSCM) have recently been proposed as a promising new technology to reduce the cost and complexity of optical transport networks,particularly those in metro aggregation scenarios with Hub-and-Spoke (H&S) traffic patterns
2505, 2022
2505, 2022
B5G-OPEN JLT Journal
“SDN-enabled Multi-band S-BVT within Disaggregated Optical Networks”, by L. Nadal, M. Svaluto Moreolo, J. M. Fàbrega, F. J. Vílchez. Abstract: A novel open SDN-enabled multi-band S-BVT based on multi-carrier modulation and direct detection receiver configuration is experimentally validated over up to 50.47 km of SSMF, enabling C-, L- and S-band transmission in disaggregated optical metro networks.
0402, 2022
B5G-OPEN @ ICT-52 Workshop on 6G
Oscar Gonzales de Dios, B5G-OPEN Coordinator, presenting at ICT-52 Workshop on 6G
2501, 2022
B5G-OPEN @ OFC2022 #4
“QoT-Driven Optical Control and Data Plane in Multi-Vendor Disaggregated Networks” by G.Borraccini, S. Straullu, A. Giorgetti, R. D’Ingillo, D. Scano, A. D’Amico, E. Virgillito, A. Nespola, N. Sambo, F. Cugini, V. Curri Abstract: A novel disaggregated network architecture with independent PCE and optical control based on GNPy is proposed and experimentally validated over a network including two independent OLSs for total 1400 km, ROADM whiteboxes and pluggable transceivers.
2501, 2022
B5G-OPEN @ OFC2022 #3
“Applications of P4-based Network Programmability in Optical Networks” by F. Cugini, D. Scano, A. Giorgetti, A. Sgambelluri, F. Paolucci, J.J. Vegas Olmos, P. Castoldi Abstract: This paper presents potentials and challenges of disaggregated metro-edge networking based on open packet-optical nodes encompassing coherent pluggable modules, SONiC open operating system, and P4-based packet switching programmability.
2501, 2022
B5G-OPEN @ OFC2022 #2
“Evaluation of Deep Reinforcement Learning for Restoration in Optical Networks” By C. Hern´andez-Chulde, R. Casellas, R. Mart´ınez, R. Vilalta, R. Munoz – CTTC. Abstract: A deep reinforcement learning-based agent is presented to perform autonomous lightpath restoration upon a link failure event. The agent is evaluated against other heuristic algorithms under different traffic load and failure duration scenarios.
2501, 2022
B5G-OPEN @ OFC2022 #1
“An SDN control plane for multiband networks exploiting a PLI-aware routing engine” by Ramon Casellas, Evangelos Kosmatos, Andrew Lord, Chris Matrakidis, Ricardo Martínez, Dimitris Uzunidis, Ricard Vilalta, Alexandros Stavdas, Raül Muñoz – CTTC, OpenLightComm Europe, British Telecom. Abstract: We report the design of a TAPI SDN control plane for multi-band networks with externalized PLI-aware RMSA. We detail the architecture, data model extensions, algorithms and the implementation and validation in an
2511, 2021
Kick-off!
B5G-OPEN officially started on Nov 1st 2021