Numerical modelings of ultrashort pulse propagation and conical emission in multimode optical fibers - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the Optical Society of America B Année : 2021

Numerical modelings of ultrashort pulse propagation and conical emission in multimode optical fibers

Résumé

We make use of two well-known numerical approaches of nonlinear pulse propagation, namely, the unidirectional pulse propagation equation and the multimode generalized nonlinear Schrödinger equation, to provide a detailed comparison of ultrashort pulse propagation and possible conical emission in the context of multimode optical fibers. We confirm the strong impact of the frequency dispersion of the nonlinear response on pulse splitting and supercontinuum dynamics in the femtosecond regime for pumping powers around the critical self-focusing threshold. Our results also confirm that the modal distribution of optical fibers provides a discretization of conical emission of the corresponding bulk medium (i.e., here fused silica). This study also provides some criteria for the use of numerical models, and it paves the way for future nonlinear experiments in commercially available optical fibers.
Fichier principal
Vignette du fichier
Numerical_modelling_conical_waves_in_MMF_JOSA_B_.pdf (1.32 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03066147 , version 1 (15-12-2020)

Identifiants

Citer

Karol Tarnowski, Sylwia Majchrowska, P. Béjot, Bertrand Kibler. Numerical modelings of ultrashort pulse propagation and conical emission in multimode optical fibers. Journal of the Optical Society of America B, 2021, 38, pp.732-742. ⟨10.1364/JOSAB.413050⟩. ⟨hal-03066147⟩
49 Consultations
413 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More