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Guided wave spatial transients under a limited grating coupler in a silicon-on-sapphire waveguide

Abstract : The limited size of a grating coupler on a waveguide is responsible for the nonuniform guided wave intensity. Spatial transients have been recorded and a characteristic length of the order of 30 μm has been determined by fitting a simple model to the experimental results. This value is consistent with spatial transient measurements performed under nonlinear operation conditions which reveal a 100 μm long dead zone in which switching contrast is very low.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02157834
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Submitted on : Monday, June 17, 2019 - 2:39:59 PM
Last modification on : Wednesday, September 16, 2020 - 5:02:26 PM

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H. Gualous, A. Koster, D. Pascal, S. Laval. Guided wave spatial transients under a limited grating coupler in a silicon-on-sapphire waveguide. Optics Communications, Elsevier, 1996, 123 (1-3), pp.83-88. ⟨10.1016/0030-4018(95)00492-0⟩. ⟨hal-02157834⟩

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