At the University of Bristol, we’re pushing the boundaries of entanglement-based Quantum Key Distribution (QKD) with our novel q-ROADM architecture—designed to bring flexibility and scalability to quantum networks. 🔑 How it Works:✨ Utilizes a broadband SPDC source for...
Switched QKD (q-ROADM) – Advancing Secure Quantum Networks
Quantum Key Distribution (QKD) is a game-changer for physical-layer security. But to unlock its full potential in real-world networks, we need flexibility—dynamic adaptability to ever-changing network conditions. At the University of Bristol, we’ve tackled this...
Advancing Quantum-Classical Integration in Optical Networks with ALLEGRO
We are excited to showcase the ALLEGRO-proposed ROADM node architecture, designed to enable seamless integration of classical signals from an S-BVT and switched QKD signals. 📡 Key Features & Innovations:✅ O-band DVQKD compatibility – Supports classical channel...
Advancing Quantum-Classical Coexistence in Optical Networks
In our latest work, we explore a three-degree ROADM node design that seamlessly integrates C-band classical signals with O-band quantum signals. 🔹 Key Features:✅ High filtering precision: A band-pass filter (BPF) eliminates out-of-band noise, followed by a band...
Node Architecture for Classical-Quantum Signal Coexistence
As quantum communication advances, ensuring the coexistence of classical and quantum signals is crucial for future secure networks. In the ALLEGRO project, we explore how Quantum Key Distribution (QKD) can be integrated into existing infrastructure, balancing...
Securing the Future: Hybrid Post-Quantum Cryptography
The rise of quantum computing threatens traditional cryptographic systems, pushing the community to adopt post-quantum cryptography (PQC) following NIST's 2016 call for proposals. While PQC algorithms promise resistance to quantum attacks, their security against...
End-to-End Encryption in Optical Transport Networks
With the increasing demand for secure high-capacity communications, OTN encryption has emerged as a powerful solution for protecting data beyond the traditional ITU-T OTN G.709 framework in metro and core networks. By encrypting the OTN transport payload frame (OPUk),...
Standard Interfaces for High-Capacity Optical Encryption
In today's high-speed communication networks, encryption plays a critical role in securing end-to-end data transmission. From the data plane to the key, control, and management planes, encryption must seamlessly integrate across all layers. Operators and customers can...
Advancing GSNR Estimation & Power Optimization with ALLEGRO
In ALLEGRO, we continue pushing the boundaries of machine learning (ML) models to enhance GSNR estimation and power optimization in optical networks. Our latest research evaluates key parameters influencing these models, including: 🔹 Channel activity & idle states...
Optimizing Optical Networks with ALLEGRO: Advancing Power Optimization & AI in QoT Estimation
In ALLEGRO, we've been diving deep into innovative methods to enhance pre-tilt power optimization and improve AI-driven GSNR and LP QoT estimation. Our latest study demonstrates how solving interrelated inverse differential equations can optimize pre-tilt power,...