Twining Digital Subcarrier Multiplexed Optical Signals with OCATA for Lightpath Provisioning

Digital Twins (DT) are needed in elastic optical networks to enable further advance and pave the way towards autonomous networks. Dynamical models self-adjusting with their physical counterpart have to maintain low computational complexity and guarantee good accuracy, regardless of the network topol...

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Bibliographic Details
Published in:Journal of lightwave technology 2024-11, p.1-10
Main Authors: Devigili, Mariano, Sequeira, Diogo, Torres-Ferrera, Pablo, Srivallapanondh, Sasipim, Costa, Nelson, Ruiz, Marc, Castro, Carlos, Napoli, Antonio, Pedro, Joao, Velasco, Luis
Format: Article
Language:English
Subjects:
Adaptive optics
Bandwidth
digital subcarrier-multiplexing systems
Digital twin
Filtering
lightpath provisioning
Noise
Nonlinear optics
Optical add-drop multiplexers
Optical amplifiers
Optical fiber networks
Optical filters
Optical noise
quality of transmission estimation
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Summary:Digital Twins (DT) are needed in elastic optical networks to enable further advance and pave the way towards autonomous networks. Dynamical models self-adjusting with their physical counterpart have to maintain low computational complexity and guarantee good accuracy, regardless of the network topology and the technology supporting the optical lightpath. In this work, we propose data-driven models based on cascaded learning for single carrier signal as well as digital subcarrier multiplexing signals. Firstly, we explore the potentials of such a DT by proposing an algorithm for lightpath provisioning. In addition, the performances of the proposed models are compared with the ones of analytical models. Secondly, we experimentally evaluate its accuracy to predict the impact of optical filtering penalties. The simulations show an overall good accuracy for different signal formats and demonstrate their viability for lightpath provisioning. Similarly, the experimental results demonstrate the feasibility of implementing such models to estimate the quality of transmission for digital subcarrier multiplexed signals
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2024.3498342