Wepropose a design for coupled-core multi-core fibers that allows to achieve extremely low levels of modal dispersion. These fibers, which we dub NEar-zero MOdal-dispersion (NEMO) fibers, have an even number of cores regularly distributed on a circle, and the optimal design parameters follow from a simple condition independent of the number of cores. The modal-dispersion reduction trades off some of the fiber mode-mixing effectiveness, yet without compromising its beneficial property of mitigating nonlinear signal distortions. The semi-analytical tool developed for this study allows to effectively characterize the effect of various types of perturbations to the ideal fiber structure.
Near-Zero Modal-Dispersion (NEMO) Coupled-Core Multi-Core Fibers
Antonelli C.;Mecozzi A.
2021-01-01
Abstract
Wepropose a design for coupled-core multi-core fibers that allows to achieve extremely low levels of modal dispersion. These fibers, which we dub NEar-zero MOdal-dispersion (NEMO) fibers, have an even number of cores regularly distributed on a circle, and the optimal design parameters follow from a simple condition independent of the number of cores. The modal-dispersion reduction trades off some of the fiber mode-mixing effectiveness, yet without compromising its beneficial property of mitigating nonlinear signal distortions. The semi-analytical tool developed for this study allows to effectively characterize the effect of various types of perturbations to the ideal fiber structure.| File | Dimensione | Formato | |
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