We present the study of multimode glass waveguides fabricated by a silver-ion electromigration process followed by a diffusion process. The study is concerned mainly with the diffusion process, which occurs by variation of the diffusion time. The obtained guides are analyzed by the prism-coupling technique, which determines their effective refractive indices that are treated by the inverse WKB method, assumed to be proportional to the silver ions’ concentration profiles, for which a Gaussian model is attributed. Diffusion coefficients then are determined from these Gaussian profiles experimentally by both methods. These diffusion coefficients show a concentration dependence related to the variation of the diffusion time. A mathematical model representing the best fit to this dependence is also presented. Finally, our results are compared with other research results, with which we find good agreement.
© 2002 Optical Society of America
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(130.3130) Integrated optics : Integrated optics materials
(160.2750) Materials : Glass and other amorphous materials
(160.3130) Materials : Integrated optics materials
Abdelhak Belkhir, "Detailed Study of Silver Metallic Film Diffusion in a Soda-Lime Glass Substrate for Optical Waveguide Fabrication," Appl. Opt. 41, 2888-2893 (2002)