3-D analysis of LiNbO3: Ti channel waveguides and directional couplers

An efficient method of calculation of effective refractive indexes and field distribution of guided optical modes in diffused channel waveguides and directional couplers is presented. Refractive index distribution which follows from the theory of two-dimensional anisotropic diffusion is considered....

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1984-01, Vol.20 (4), p.400-409
Main Authors: Ctyroky, J., Hofman, M., Janta, J., Schrofel, J.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Applied sciences
Circuit properties
Directional couplers
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Geometrical optics
High speed optical techniques
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
Optical device fabrication
Optical refraction
Optical signal processing
Optical waveguides
Refractive index
Titanium
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Summary:An efficient method of calculation of effective refractive indexes and field distribution of guided optical modes in diffused channel waveguides and directional couplers is presented. Refractive index distribution which follows from the theory of two-dimensional anisotropic diffusion is considered. Experiments which relate the refractive index profile with fabrication parameters are described. Then the coupling length of a directional coupler can be calculated from the fabrication parameters. The results correspond well to recently published experimental data.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.1984.1072414