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Published July 9, 2003 | Published
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Controlling group velocity in rectangular-lattice photonic crystal waveguides

Abstract

A method for controlling the dispersion and thus group velocity of guided modes in photonic crystal (PC) waveguides using bi- and quasi-periodic lattices is presented. Rectangular lattice photonic crystals are proposed as possible candidates for implementing such control. However, these structures, and generally all bi-periodic lattices, develop undesirable characteristics as the perfect square lattice is perturbed. Thus, quasi-periodic photonic crystals, which have been shown to be promising in selective mode engineering, were examined next. A possible scheme for engineering of a single mode PC waveguide with guiding through the entire bandgap is presented.

Additional Information

© 2003 Society of Photo-Optical Instrumentation Engineers (SPIE). I would like to thank Lucent Technologies for their support in funding my research.

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