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Opt Lett. 2005 Sep 15;30(18):2406-8.

Dispersion characteristics of coupled-resonator optical waveguides.

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  • 1Department of Electrical and Computer Engineering M/C 0407, University of California, San Diego, La Jolla, California 92093, USA.


A tight-binding optical waveguide formed by proximity coupling of nearest-neighbor resonators, e.g., a coupled-resonator optical waveguide (CROW), has distinct wave and pulse propagation characteristics compared with a conventional waveguide, and several applications in photonic devices have been proposed recently. But analysis of the dispersion, and in particular the group-velocity dispersion, in such a waveguide requires particular attention: the waveguide displays two distinct regimes of operation, depending on the position of the wave packet in the dispersion relationship.

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