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Sharp bends in photonic crystal waveguides as nonlinear Fano resonators

Andrey E. Miroshnichenko·Yuri S. Kivshar
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Abstract

We demonstrate that high transmission through sharp bends in photonic crystal waveguides can be described by a simple model of the Fano resonance where the waveguide bend plays a role of a specific localized defect. We derive effective discrete equations for two types of the waveguide bends in two-dimensional photonic crystals and obtain exact analytical solutions for the resonant transmission and reflection. This approach allows us to get a deeper insight into the physics of resonant transmission, and it is also useful for the study and design of power-dependent transmission through the waveguide bends with embedded nonlinear defects.

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Andrey E. Miroshnichenko, Yuri S. Kivshar. 2005-03-04. Sharp bends in photonic crystal waveguides as nonlinear Fano resonators. https://doi.org/10.1364/opex.13.003969

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