2024/01/10 by Elliot London, Emanuele Virgillito, London, Elliot +5
Engineering · #Advanced Optical Network Technologies #Advanced Photonic Communication Systems #FOS: Electrical engineering #FOS: Physical sciences #Optical Network Technologies #Optics (physics.optics) #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2402.09415
openalex publication_date 2024/01/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03
We evaluate the generation of the cross-channel interference (XCI) for coherent transmission through a variety of dispersion-managed segments in a disaggregated optical network framework, using split-step Fourier method (SSFM) simulations and an implementation of the Gaussian noise (GN) model. We observe that the small inline residual dispersion remaining after each span affects the accumulation of the XCI, causing GN model predictions to no longer be conservative. We find an asymptotic upper bound to this additional accumulation, providing a worst-case prediction, and observe that this depends upon the residual dispersion within the link. This upper bound scales similarly to the self-channel interference (SCI) accumulation, and is well characterized by the parameters of the underlying fiber spans and the transmitted signals.