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Acoustic wave propagation along cladded fibers of cubic crystal symmetry

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1109/58.464823
AuteurRechercher : ; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
FormatTexte, Article
Sujetacoustic wave propagation; cubic crystal symmetry; nonpiezoelectric cladded fibers; coupled mode equations; anisotropy; dispersion; flexural modes; torsional modes; radial-axial modes; pertubation formula; birefringence
Résumé
An approximate method is proposed to analyze the acoustic wave propagation characteristics in nonpiezoelectric cladded fibers of cubic crystal symmetry. The fiber axis coincides with the crystalline Z axis. This approximate method utilizes coupled mode equations and the exact solutions for the corresponding cladded isotropic fiber are used as the approximation base. We concentrate our analysis on cubic fibers with weak anisotropy where the first order approximation obtained from the coupled mode equations can provide accurate results. Dispersion curves of a few lower order flexural, torsional and radial-axial modes in such a fiber with infinite cladding are presented for the first time. Higher order approximations are also discussed. We show the accuracy of the perturbation formula, reveal that the torsional and radial-axial modes are not pure in cubic fibers, and inspect the modal birefringence phenomenon.
Date de publication
Maison d’éditionIEEE
Dans
  • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 42, nº 5 : 943–948.
Langueanglais
Publications évaluées par des pairsOui
Numéro du CNRCCNRC 33749
NRC-IMI92AP-10121-1309-G
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Identificateur de l’enregistrement11da8a96-5f1b-4cff-a8a3-24658c584d76
Enregistrement créé2020-06-08
Enregistrement modifié2020-06-08
Date de modification :