Title :
Modal characterization using Bragg gratings in photosensitive SiO/sub 2/-Si strip waveguides
Author :
Le Gall, F. ; Loaëc, F. ; Devoldère, N. ; Loisel, B. ; Mehadji, K. ; Moisan, M.
Author_Institution :
CNET, Lannion, France
fDate :
6/1/1997 12:00:00 AM
Abstract :
New methods for modal characterization of silica waveguides using UV-induced Bragg gratings are proposed. These methods rely either on the filtering of the fundamental optical mode with a Bragg filter or on the mode coupling by tilting the Bragg grating relative to the optical axis. Both theoretical and experimental results are reported.
Keywords :
diffraction gratings; integrated optics; optical waveguide filters; optical waveguide theory; optical waveguides; silicon; silicon compounds; Bragg filter; Bragg gratings; SiO/sub 2/-Si; UV-induced Bragg gratings; filtering; fundamental optical mode; modal characterization; mode coupling; optical axis; photosensitive SiO/sub 2/-Si strip waveguides; silica waveguides; Bragg gratings; Equations; Optical attenuators; Optical filters; Optical planar waveguides; Optical waveguide theory; Optical waveguides; Planar waveguides; Silicon compounds; Strips;
Journal_Title :
Photonics Technology Letters, IEEE
