DocumentCode
1066375
Title
Dispersion characteristics of diffused channel waveguides
Author
Taylor, H.F.
Author_Institution
Naval Electronics Laboratory Center, San Diego, CA, USA
Volume
12
Issue
12
fYear
1976
fDate
12/1/1976 12:00:00 AM
Firstpage
748
Lastpage
752
Abstract
A variational method is used to calculate dispersion curves for channel waveguides fabricated by masked diffusion. Composition profiles for the waveguides are obtained by numerical solution of the diffusion equation, assuming that the diffusant concentration in the unmasked region of the substrate surface is constant during the diffusion process. A linear dependence of refractive index change on diffusant concentration is assumed. The dependence of the number of guided modes on mask gap width and diffusion depth is determined as an aid to the design of modulators and switches for integrated optics.
Keywords
Diffusion processes; Electromagnetic waveguides; Equations; Integrated optics; Optical planar waveguides; Optical switches; Optical waveguide theory; Optical waveguides; Planar waveguides; Refractive index;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1976.1069087
Filename
1069087
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