Allegro

ALLEGRO aims at designing and validating a novel end-to-end sliceable, reliable, and secure architecture for next-generation optical networks, achieving high transmission/switching capacity

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About ALLEGRO ‘Agile ultra low energy secure networks’

ALLEGRO aims at designing and validating a novel end-to-end sliceable, reliable, and secure architecture for next-generation optical networks, achieving high transmission/switching capacity

  • with 10 Tb/s for optoelectronic devices and 1 Pbt/s for optical fiber systems
  • low power consumption/cost
  • with > 25% savings
  • and secure infrastructures and data transfers.

The architecture relies on key enabling innovations:

  1. smart, coherent transceivers exploiting multi-band & multi-fiber technologies for P2P and P2MP applications, based on e.g., high-speed plasmonic modulators/photodetectors and programmable silicon photonic integrated waveguide meshes;
  2. loss-less, energy-efficient transparent photonic integrated optical switches, eliminating OEO conversions, e.g., with on-chip amplification in the O-band for datacom applications;
  3. a consistent approach to security, in terms of functional/ protocol architectures and communications, further improving QKD systems, enabling optical channel co-existence and researching on quantum-resistant (post-quantum) cryptography, developing systems based on physically unclonable functions; and
  4. a scalable AI/ML assisted control and orchestration system, responsible for autonomous networking, dynamic and constrained service provisioning, function placement and resource allocation, leveraging devices increasing programmability and overall network softwarization.

      To achieve the target objectives and KPIs, ALLEGRO has defined a clear methodology ending in ambitious demonstrators. The consortium includes a good balance of industry and research/academia with know-how in complementary fields.

      The results of ALLEGRO will be disseminated in leading conferences, events, and high-impact journals. They will have a concrete and measurable economic and social impact, contributing towards achieving key European objectives, reinforcing European leadership and digital sovereignty in the ongoing digital and green transition.

      Project News

      QCNC 2025: Hybrid Classical–Quantum ML for Large Datasets

      Oct 17, 2025

      We are pleased to announce a new paper accepted at QCNC 2025: G. Maragkopoulos, N. Stefanakos, A. Mandilara & D. Syvridis“Applications of Hybrid Machine Learning Methods to Large Datasets: A Case Study”🔗 Access the preprint here: https://arxiv.org/abs/2504.06892...

      QCNC 2025: Introducing a 3-User MDI-QKD Protocol

      Oct 16, 2025

      We are excited to share our accepted contribution at QCNC 2025: N. Stefanakos, G. Maragkopoulos, A. Mandilara, and D. Syvridis“A Measurement Device Independent Quantum Key Distribution protocol in the service of three users” 🔗 Access the preprint:...

      Integrating CV-QKD with Classical Channels: Insights from ICTON 2024

      Sep 5, 2025

      We are pleased to showcase our invited paper at ICTON 2024: Masab Iqbal, Michela Svaluto Moreolo, Arturo Villegas, Laia Nadal, and Raul Muñoz“Continuous Variable Quantum Key Distribution Coexisting with Classical Channels,” ICTON 2024.🔗 Access the paper:...