Using quasi-guided modes for modeling the transfer behavior of bent dielectric slab waveguides
The connection of two straight dielectric multimode slab waveguides by a circular bent waveguide is analyzed by means of quasi-guided modes. These modes correspond to the well known leaky modes, but own real eigenvalues, thus the mathematical description is simpler. Furthermore they are deri...
Main Authors: | , , |
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Format: | Article |
Language: | deu |
Published: |
Copernicus Publications
2010-09-01
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Series: | Advances in Radio Science |
Online Access: | http://www.adv-radio-sci.net/8/19/2010/ars-8-19-2010.pdf |
Summary: | The connection of two straight dielectric multimode slab waveguides by a
circular bent waveguide is analyzed by means of quasi-guided
modes. These modes correspond to the well known leaky modes, but own real
eigenvalues, thus the mathematical description is simpler. Furthermore they
are derived as approximate solutions of the exact theory. This work will
first give a brief introduction to the basic theory, followed by a
discussion of the properties of quasi-guided modes. After a validation by
comparison with a numerical simulation using the Finite Integration
Technique, results for the bending loss of multimode waveguides are
presented. |
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ISSN: | 1684-9965 1684-9973 |