Analysis of rib dielectric waveguides
Abstract
It is noted in the present analysis of rib dielectric waveguides on the basis of a mode-matching technique that, when the constituent slab guides support only one guided mode, the cutoff condition for the higher-order modes is the same as the result yielded by the effective dielectric constant method. When the rib region is thick enough to support two guided slab modes, however, the cutoff conditions are significantly different. Universal design curves are obtained for this case, and the results obtained are compared with the Marcatili (1974) theory for such structures.
- Publication:
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IEEE Journal of Quantum Electronics
- Pub Date:
- April 1985
- DOI:
- Bibcode:
- 1985IJQE...21..315D
- Keywords:
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- Dielectrics;
- Optical Waveguides;
- Propagation Modes;
- Analytic Functions;
- Cut-Off;
- Equivalent Circuits;
- Matching;
- Transverse Waves;
- Electronics and Electrical Engineering