Adiabatic coupling between conventional dielectric waveguides and waveguides with discrete translational symmetry
- 15 May 2000
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 25 (10) , 755-757
- https://doi.org/10.1364/ol.25.000755
Abstract
We study adiabatic transformation in optical waveguides with discrete translational symmetry. We calculate the reflection and transmission coefficient for a structure consisting of a slab waveguide that is adiabatically transformed into a photonic crystal waveguide and then back into a slab waveguide. The calculation yields high transmission over a wide frequency range of the photonic crystal waveguide band and indicates efficient coupling between the slab waveguide and the photonic crystal waveguide. Other applications of adiabatic mode transformation in photonic crystal waveguides and the coupled-resonator optical waveguides are also discussed.Keywords
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