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,...
Exploring Power Optimization and GSNR Estimation in Multi-Band Optical Systems
As optical networks evolve beyond the traditional C-band, power optimization becomes increasingly complex. The LOGO approach has been a reliable method for determining optimal signal launch power within the C-band. However, as we expand into multi-band transmission,...
Launch of Power Optimization in Single-Fibre, Single-Wavelength Coherent P2P Transport Networks
As mobile transport networks evolve, the need for high-capacity, single-fibre bidirectional (Bi-Di) transmission links becomes increasingly critical to maintain strict timing and synchronization requirements. In the ALLEGRO project, we are pushing the boundaries of...
Optimizing Amplifier Gain Strategy for RAN in DWDM Networks
Managing EDFA amplifiers in a DWDM network is a complex challenge. The choice between constant gain mode and constant power mode directly impacts power stability, OSNR, and overall network performance. 🔹 Key Considerations: ✅ Constant Power Mode – Preferred in highly...
Enhancing ROADMs with a Modified Broadcast-and-Select Architecture
Traditional ROADMs and WSSs face limitations in efficiently supporting Point-to-Multipoint (P2MP) optical networks. To overcome these challenges, we propose a modified Broadcast-and-Select (B&S) ROADM architecture that improves spectrum efficiency and minimizes...
Long-Access Metro + PON Convergence: Unlocking the Span Budget
PON has become the gold standard for fixed optical access, with over a billion terminations deployed globally. As ITU-T and IEEE drive new standards to push bit rates even further, the discussion now includes 200 Gb/s per wavelength using PM-QAM and coherent...
Amplified Access Ring with Filter-less Add/Drop Operation
In the ALLEGRO project, we've explored how pluggable EDFAs—low-cost amplifiers primarily designed for DCI applications—can be leveraged in multi-span DWDM networks despite their limitations. 🔍 Challenges with Pluggable EDFAs:✔️ Lack of variable gain operation with...
Monitoring Natural Disasters with Optical Fibres
Can optical fibres double as seismic sensors? Yes! Our work within the ALLEGRO project explores how state of polarization (SOP) variations in fibre-optic networks can be leveraged for earthquake detection and early warning systems. 📡🌎 🔬 How it Works:Using commercially...
Low-complexity Failure Management in Optical Networks
In the ALLEGRO project, we’ve taken a step forward in ML-driven failure management by developing a NN-based soft failure identifier that maintains high accuracy while significantly reducing complexity. 🔍💡 📌 Why is this important?Most ML-based failure detection models...