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Article Dans Une Revue Applied Physics Letters Année : 2013

Mastered dispersion of material resonators: Broad corrugated waveguides working under the Littrow regime

Résumé

An anomalous dispersion for modes of a material resonator is highly desired to form frequency combs. A resonator free-spectral-range (FSR) controlled by shape so as to increase with frequency ω/2π compensates the normal index dispersion ∂n/∂ω>0, producing evenly spaced resonances. Only special shapes achieve this scope. We show here that broad periodic corrugated waveguides working at Littrow regime feature such an increasing trend ∂FSR/∂ω>0. We outline experimentally this trend on silicon-on-insulator devices designed for 45° Littrow operation. We predict dispersion-free silicon-based designs across the 1.4–4.0µm mid-infrared range.
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Dates et versions

hal-00857663 , version 1 (18-11-2015)

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Paternité - Pas d'utilisation commerciale

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Henri Benisty, Nikolay Piskunov. Mastered dispersion of material resonators: Broad corrugated waveguides working under the Littrow regime. Applied Physics Letters, 2013, 102, pp.151107. ⟨10.1063/1.4802253⟩. ⟨hal-00857663⟩
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