Journal
OPTICS EXPRESS
Volume 14, Issue 20, Pages 9444-9450Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.14.009444
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We demonstrate a concept for tailoring the group velocity and dispersion properties for light propagating in a planar photonic crystal waveguide. By perturbing the holes adjacent to the waveguide core it is possible to increase the useful bandwidth below the light-line and obtain a photonic crystal waveguide with either vanishing, positive, or negative group velocity dispersion and semi-slow light. We realize experimentally a silicon-on-insulator photonic crystal waveguide having nearly constant group velocity similar to c(0)/34 in an 11-nm bandwidth below the silica-line. (c) 2006 Optical Society of America
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