Coupling into slow-mode photonic crystal waveguides
Date
2007
Authors
Hugonin, J. P.
Lalanne, P.
White, T. P.
Krauss, T. F.
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Abstract
We study efficient injectors for coupling light from z-invariant ridge waveguides into slow Bloch modes of single-row defect photonic crystal waveguides. Two-dimensional vectorial computations performed with a Bloch mode theory approach predict that very high efficiencies (>90%) can be achieved for injector lengths of only a few wavelengths in length, even for small group velocities in the range of 𝑐⁄100–𝑐⁄400. This result suggests that photonic crystal devices operating with slow waves can be interfaced with classical waveguides without sacrificing compactness.
Description
Keywords
Keywords: Group velocity dispersion; Waveguide couplers; Wavelength; Coupling light; Slow waves; Photonic crystals
Citation
Collections
Source
Optics Letters
Type
Journal article