In next-generation optical networks, optimizing the Optical Distribution Network (ODN) loss is crucial to balancing power budgets while mitigating nonlinear effects. Our latest experimental study at Allegro evaluates the impact of ASE noise, receiver noise, and filter...
Coherent detection has revolutionized optical communications since its introduction in long-haul, high-speed systems. Now, as demand for higher data rates grows in access networks and data center interconnects, the industry is exploring how coherent technology could...
With the rise of 400G+ coherent technology and its adoption in open pluggable interfaces, computing path feasibility over transparent lightpaths (LPs) has become more crucial than ever—even in metro-core networks. 🔍 Key challenge? While LP performance is typically...
Excited to share our latest work on Bi-Di transmission between two 400G-capable coherent transceivers (TRXs) over a single fibre at 193.0 THz! This setup enables both upstream (US) and downstream (DS) channels to share the same center frequency, pushing the boundaries...
The key to realizing Digital Twins (DTs) in optical networks lies in accurately modeling critical network components—particularly transceivers and optical amplifiers. These components significantly impact the reliability and predictive capabilities of DT frameworks. 📌...
We're excited to share our latest work in the ALLEGRO project on Digital Twin (DT) assisted Self-Healing! 🌐✨ By leveraging the open-source GNPy library (by TIP) as a digital model service, we've implemented a DT-driven Optical Line Controller (OLC) capable of...
Excited to share my latest work on chirp compensation using a nonlinear model (NLM) to mitigate the effects of directly modulated VCSELs (DMVCSELs)! By leveraging a Hammerstein-Wiener (HW) system, our trained model utilizes a phase modulator (PM) to correct phase...
DM VCSELs (Directly Modulated Vertical-Cavity Surface-Emitting Lasers) are at the core of high-speed optical communication systems, offering compact size and high performance. To enhance the efficiency of Bandwidth-Variable Transmitters (BVTs), we developed a model...
In the ALLEGRO project we are pushing the boundaries of VCSEL-based Bandwidth Variable Transceivers (BVTs) with advanced chirp compensation techniques. Our work focuses on optimizing the performance and adaptability of SDN-enabled S-BVTs through adaptive digital...
In the ALLEGRO project we are pioneering next-generation flexible transceivers (TRXs) to optimize optical communication networks. A key aspect of our work is the back-to-back (B2B) characterization of coherent TRXs, enabling precise assessment of light-path GSNR...