Optimal Switching Operation of PT-Symmetric Dimmers with Nonuniform Gain/Loss and Coupling Profiles - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

Optimal Switching Operation of PT-Symmetric Dimmers with Nonuniform Gain/Loss and Coupling Profiles

Fonctionnement optimal de commutation des coupleurs directionnels à symétrie Parité-Temps avec des profils non uniformes de gain/perte et de couplage

Résumé

We assess through a variational optimization approach the optimal gain-loss profile for a non-uniform PT-symmetric coupler allowing the realization of a binary transfer function and minimizing the deviation of the total traveling light intensity as compared to that holding in a conservative system. We bring evidence that the gain-loss profile fulfilling this requirement corresponds to a non-conventional situation when light intensity is conserved in every point along the propagation distance in the PT-symmetric system. Furthermore, the optimal profile thus found corresponds to a practically important case of optical switching operation achieved with a minimal amount of amplification level. We show that switching architectures using such type of gain-loss profiles are very substantially advantageous as compared to conventional uniform PT-symmetric couplers. Furthermore, this type of optimal profile turns out to be robust with respect to fabrication imperfections. This opens new prospects for functional applications of PT-symmetric devices in photonics.
Fichier principal
Vignette du fichier
ICTON 2018 VB.pdf (292.24 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04480574 , version 1 (27-02-2024)

Identifiants

Citer

Anatole Lupu, Vladimir Konotop, H. Benisty. Optimal Switching Operation of PT-Symmetric Dimmers with Nonuniform Gain/Loss and Coupling Profiles. 20th International Conference on Transparent Optical Networks (ICTON 2018), Jul 2018, Bucarest, Romania. ⟨10.1109/ICTON.2018.8473713⟩. ⟨hal-04480574⟩
17 Consultations
1 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More