An efficient multimode vectorial nonlinear propagation solver beyond the weak guidance approximation - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail (Preprint/Prepublication) Année : 2024

An efficient multimode vectorial nonlinear propagation solver beyond the weak guidance approximation

Résumé

In this article, we present an efficient numerical model able to solve the vectorial nonlinear pulse propagation equation in circularly symmetric multimode waveguides. The algorithm takes advantage of the conservation of total angular momentum of light upon propagation and takes into account the vectorial nature of the propagating modes, making it particularly relevant for studies in ring-core fibers. While conventional propagation solvers exhibit a computational complexity scaling as N^4_{mode} where N_{mode} is the number of considered modes, the present solver scales as N^{3/2}_{mode}. As a first example, it is shown that orbital angular momentum modulation instability processes take place in ring-core fibers in realistic conditions. Finally, it is predicted that the modulation instability process is followed by the appearance of breather-like angular structures.
Fichier principal
Vignette du fichier
An_efficient_multimode_vectorial_nonlinear_propagation_solver_beyond_the_weak_guidance_approximation.pdf (21.74 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY - Paternité

Dates et versions

hal-04498495 , version 1 (11-03-2024)

Identifiants

Citer

Pierre Béjot. An efficient multimode vectorial nonlinear propagation solver beyond the weak guidance approximation. 2024. ⟨hal-04498495⟩
11 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More