Journal
OPTICS LETTERS
Volume 32, Issue 18, Pages 2638-2640Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.32.002638
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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. (c) 2007 Optical Society of America.
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