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Cavity mode control in side-coupled periodic waveguides: theory and experiment

Ha, Sangwoo; Lavrinenko, Andrei; Sukhorukov, Andrey; Kivshar, Yuri


We demonstrate that the modes of coupled cavities created in periodic waveguides can depend critically on the longitudinal shift between the cavities. In the absence of such shift, the modes feature symmetric or antisymmetric profiles, and their frequency splitting generally increases as the cavities are brought closer. We show that the longitudinal shift enables flexible control over the fundamental modes, whose frequency detuning can be reduced down to zero. Our coupled-mode theory analysis...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Photonics and Nanostructures: Fundamentals and Applications
DOI: 10.1016/j.photonics.2010.04.010


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