DocumentCode
1249772
Title
Analytical solution of the field in a fibre up-taper with a parabolic index profile
Author
Bolle, A. ; Lundgren, L.
Author_Institution
Dept. of Appl. Electron. Phys., Chalmers Univ. of Technol., Goteborg, Sweden
Volume
137
Issue
5
fYear
1990
fDate
10/1/1990 12:00:00 AM
Firstpage
301
Lastpage
304
Abstract
An analytical solution of the field in a fibre up-taper with a parabolic index profile is obtained by solving the scalar wave equation. The field is expressed in generalised Laguerre-Gaussian polynomials. With this description, the evolution of the spot size and the wavefront curvature are easily seen. The presence of spot size oscillations along a taper is predicted in the case of a mismatch between the exciting beam at the taper entrance and the fundamental mode
Keywords
optical couplers; optical fibres; polynomials; refractive index; Laguerre-Gaussian polynomials; analytical solution; exciting beam; fibre coupler applications; fibre up-taper; fibre up-taper field; fundamental mode; optical fibres; parabolic index profile; scalar wave equation; spot size; spot size oscillations; taper entrance; wavefront curvature;
fLanguage
English
Journal_Title
Optoelectronics, IEE Proceedings J
Publisher
iet
ISSN
0267-3932
Type
jour
Filename
59019
Link To Document