DocumentCode
1329801
Title
Time-domain finite-difference BPM with Pade approximants in time axis for analysis of circularly symmetric fields
Author
Shibayama, J. ; Takahashi, T. ; Yamauchi, J. ; Nakano, H.
Author_Institution
Coll. of Eng., Hosei Univ., Tokyo, Japan
Volume
36
Issue
4
fYear
2000
fDate
2/17/2000 12:00:00 AM
Firstpage
319
Lastpage
321
Abstract
A Pade (2,2) approximant is applied to the time axis in the time-domain beam propagation method for circularly symmetric fields. By virtue of a multistep procedure, the Pade (2,2) operator is factored into a series of two Pade (1,1) operators. The present method offers substantial improvement in the analysis of pulse propagation. An upper limit of the time step is also discussed using the analysis of a fibre grating
Keywords
diffraction gratings; finite difference time-domain analysis; optical fibre theory; optical waveguide theory; Pade (1,1) operators; Pade (2,2) approximant; Pade (2,2) operator; Pade approximants; circularly symmetric fields; fibre grating; multistep procedure; optical waveguides; pulse propagation; time axis; time step; time-domain beam propagation method; time-domain finite-difference beam propagation method; upper limit;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000312
Filename
840233
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