Title :
Iterative refinement technique for reconstructing refractive index profiles from mode indices
Author :
Oven, R. ; Batchelor, S. ; Ashworth, D.G. ; Gelder, D. ; Bradshaw, J.M.
Author_Institution :
Electron. Eng. Labs., Kent Univ., Canterbury, UK
fDate :
2/2/1995 12:00:00 AM
Abstract :
A method is presented whereby the refractive index profile of a planar, surface, dielectric optical waveguide may be reconstructed from a measured set of effective refractive indices in a way that is consistent with the Helmholtz equation. Profiles are compared with those obtained by conventional techniques which use the Wentzel-Kramers-Brillouin (WKB) approximation
Keywords :
iterative methods; optical planar waveguides; optical waveguide theory; refractive index; Helmholtz equation; iterative refinement technique; mode indices; planar dielectric optical waveguide; refractive index profiles;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950156
