Title:
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Nonlinearity-induced broadening of resonances in dynamically modulated couplers
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Author:
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Szameit, Alexander; Kartashov, Yaroslav V.; Heinrich, Matthias; Dreisow, Felix; Keil, R; Nolte, Stefan; Tunnermann, A; Vysloukh, Victor A.; Lederer, F; Torner Sabata, Lluís
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica |
Abstract:
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We report the observation of nonlinearity-induced broadening of resonances in dynamically modulated directional couplers. When the refractive index of the guiding channels in the coupler is harmonically modulated along the propagation direction and is out-of-phase in two channels, coupling can be completely inhibited at resonant modulation frequencies. We observe that nonlinearity broadens such resonances and that localization can be achieved even in detuned systems at power levels well below those required in unmodulated couplers. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica -Photonics -Optical communications -Fotònica -Comunicacions òptiques |
Rights:
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Document type:
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Article - Published version Article |
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