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  4. Nonlinearity-induced broadening of resonances in dynamically modulated couplers
 
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2009
Journal Article
Title

Nonlinearity-induced broadening of resonances in dynamically modulated couplers

Abstract
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. (C) 2009 Optical Society of America
Author(s)
Szameit, A.
Kartashov, Y.V.
Heinrich, M.
Dreisow, F.
Keil, R.
Nolte, S.
Tünnermann, A.
Vysloukh, V.A.
Lederer, F.
Torner, L.
Journal
Optics Letters  
Open Access
DOI
10.1364/OL.34.002700
Additional full text version
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Language
English
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Keyword(s)
  • wave-guide array

  • optical lattice

  • photonic lattice

  • localization

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