DocumentCode
1163461
Title
Improvement of finite difference methods for step-index optical waveguides
Author
Vassallo, C.
Author_Institution
CNET, Lannion, France
Volume
139
Issue
2
fYear
1992
fDate
4/1/1992 12:00:00 AM
Firstpage
137
Lastpage
142
Abstract
New 3-point finite difference formulae with equally spaced grid points are given for the analysis of scalar or semivectorial fields in waveguides with discontinuous refractive index profiles. The new formulae lead to more accurate calculations for the modes than the previously known methods, irrespective of the location of the discontinuities with respect to the grid points and without averaging the permittivity over meshes
Keywords
difference equations; optical waveguide theory; refractive index; 3-point finite difference formulae; discontinuous refractive index profiles; equally spaced grid points; finite difference methods; integrated optics; optical fibres; planar waveguides; scalar fields; semivectorial fields; step-index optical waveguides;
fLanguage
English
Journal_Title
Optoelectronics, IEE Proceedings J
Publisher
iet
ISSN
0267-3932
Type
jour
Filename
135846
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