DocumentCode
1031415
Title
Perturbation analysis of fibre acoustic modes
Author
Safaai-Jazi, A. ; Jen, C.K. ; Farnell, G.W.
Author_Institution
McGill University, Department of Electrical Engineering, Montreal, Canada
Volume
23
Issue
7
fYear
1987
Firstpage
350
Lastpage
351
Abstract
A perturbation analysis of guided modes in weakly guiding fibre acoustic waveguides is outlined. The perturbing parameter is the shear velocity difference between the core and cladding. It is seen that zero-order solutions of acoustic modes are identical in mathematical form to those of analogous optical modes. The error in the zero-order approximation of acoustic modes, however, is higher than that of optical modes.
Keywords
acoustic waveguides; fibres; perturbation techniques; ultrasonic propagation; US propagation; error; fibre acoustic modes; fibre acoustic waveguides; guided modes; perturbation analysis; shear velocity difference; zero-order approximation; zero-order solutions;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19870258
Filename
4257586
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