Twining Digital Subcarrier Multiplexed Optical Signals With OCATA for Lightpath Provisioning
Devigili, M.
; Sequeira, D. G.
; Torres-Ferrera, P.
; Srivallapanondh, S.
; Costa, N.
; Ruiz, M.
; Castro, C.
; Napoli, --
;
Pedro, J. M.
; Esteban, L.
Journal of Lightwave Technology Vol. 43, Nº 6, pp. 2599 - 2609, March, 2025.
ISSN (print): 0733-8724
ISSN (online): 1558-2213
Scimago Journal Ranking: 1,29 (in 2024)
Digital Object Identifier: 10.1109/JLT.2024.3498342
Abstract
Digital Twins (DT) are needed in elastic optical net- works to enable further advance and pave the way towards au- tonomous networks. Dynamical models self-adjusting with their physical counterpart have to maintain low computational com- plexity 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 mul- tiplexing 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 fi ltering 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.
