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High efficiency coupling of light from a ridge to a photonic crystal waveguide

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Abstract

We present theoretical and experimental demonstration of two designs to achieve group velocity insensitive coupling of light from a ridge waveguide to a photonic crystal waveguide. We demonstrate an average improvement of 62% in coupling to low group velocity modes and an average coupling enhancement of 11.5% at large group velocities.

© 2013 Optical Society of America

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