Full-Vectorial Finite-Element Analysis of Acoustic Modes in Silica Waveguides

Author

Sriratanavaree, Suchara ; Azizur Rahman, B.M. ; Leung, David M. H. ; Kejalakshmy, Namassivayane ; Grattan, K.T.V.

Author_Institution

Dept. of Electr. Eng., City Univ. London, London, UK

Volume

50

Issue

12

fYear

2014

fDate

Dec. 2014

Firstpage

1006

Lastpage

1013

Abstract

A finite-element code has been developed to study the vector acoustic modes in high index contrast silica optical waveguides. Detailed spatial variations of the transverse and longitudinal displacement vectors are shown for the bending, radial, and torsional modes. The variation of the frequency shift due to the stimulated Brillouin scattering and the overlaps seen between the acoustic and optical waveguides also are presented, together with the modal hybridness and modal dispersion.

Keywords

acoustic waveguides; finite element analysis; optical waveguides; silicon compounds; stimulated Brillouin scattering; SiO₂; acoustic modes; acoustic waveguides; bending modes; finite-element code; frequency shift; full-vectorial finite-element analysis; longitudinal displacement vectors; modal dispersion; modal hybridness; radial modes; silica optical waveguides; stimulated Brillouin scattering; torsional modes; transverse displacement vectors; Acoustic waveguides; Nonlinear optics; Optical scattering; Optical waveguides; Propagation constant; Vectors; Acoustic waves; Finite element analysis; Optical waveguides; Stimulated Brillouin Scattering; finite element analysis; optical waveguides; stimulated Brillouin scattering;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2014.2364199

Filename

6932435