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Authors: P. Bienstman, S. Assefa, S.G. Johnson, J.D. Joannopoulos, G. Petrich, L. Kolodziejski
Title: Taper structures for coupling into photonic crystal slab waveguides
Format: International Journal
Publication date: 9/2003
Journal/Conference/Book: JOSA B
Volume(Issue): 20(9) p.1817-1821
DOI: 10.1364/josab.20.001817
Citations: 64 (Dimensions.ai - last update: 11/4/2021)
50 (OpenCitations - last update: 12/4/2021)
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Abstract

We present an adiabatic taper design in three dimensions (3D) for coupling light into photonic crystal defect waveguides in a square lattice of circular dielectric rods. The taper is a two-stage structure, whereby the first stage makes the transition from a dielectric waveguide to a coupled-cavity waveguide. The second stage subsequently transforms the waveguide mode from an index-guided mode to a band-gap guided mode. We discuss differences between the two dimensional (2D) device and its three dimensional (3D) slab version.

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