DocumentCode :
1133853
Title :
WKB analysis of planar surface waveguides with truncated index profiles
Author :
Srivastava, Ramakant ; Kao, C.K. ; Ramaswamy, Ramu V.
Author_Institution :
University of Florida, Gainesville, FL, USA
Volume :
5
Issue :
11
fYear :
1987
fDate :
11/1/1987 12:00:00 AM
Firstpage :
1605
Lastpage :
1609
Abstract :
We present a WKB analysis of planar surface waveguides with truncated arbitrary refractive index profiles. It is shown that the phase change at the turning point on the substrate side approaches zero near the cutoff. The validity of the conventional assumption of constant phase change of 
at the turning point is investigated, and the consequent errors near the mode cutoffs are analyzed for index profiles of practical interest.
at the turning point is investigated, and the consequent errors near the mode cutoffs are analyzed for index profiles of practical interest.Keywords :
Optical planar waveguides; Optical refraction; Optical surface waves; Planar optical waveguide; Helium; Optical reflection; Optical refraction; Optical surface waves; Optical waveguides; Planar waveguides; Propagation constant; Refractive index; Surface waves; Turning;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.1987.1075444
Filename :
1075444
Link To Document :
