Coupling into slow-mode photonic crystal waveguides

J. P. Hugonin, P. Lalanne, T. P. White, T. E. Krauss

Research output: Contribution to journalArticlepeer-review

156 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)2638-2640
Number of pages3
JournalOptics Letters
Issue number18
Publication statusPublished - 15 Sept 2007




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