Demonstrating Lightpath Operation with the OCATA Digital Twin in Multiband Optical Networks

In this work, the outline for a live demonstration of the multiband OCATA digital twin is presented. This digital twin enables intelligent functions such as quality of transmission (QoT) estimation and adaptive model tuning, among other functionalities. This demonstration highlights the integration of deep neural networks (DNNs) to simulate end-to-end multiband lightpaths across C+L+S spectral bands. A live deployment on a virtualized testbed at UPC, Barcelona, showcases the OCATA DT's abilities in two main scenarios. Attendees will engage with an interactive dashboard to explore how the DT estimates QoT and refines its internal models using telemetry data. This demonstration aims to illustrate the practical benefits of digital twins for autonomous network operation, performance assurance, and cost-efficient scaling of next-generation optical infrastructure.