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High-efficiency light coupling in a submicrometric silicon-on-insulator waveguide

Abstract : Light coupling into a sub-micrometer-thick waveguide is usually done through a grating coupler. Coupling efficiency is strongly enhanced by addition of a mirror above the grating. This new kind of coupler can be designed to achieve efficiencies as great as 80%. Numerical calculations for a high-angular-spread Gaussian incident beam are compared with experimental results obtained for a standard silicon-on-insulator waveguide.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02157824
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Submitted on : Monday, June 17, 2019 - 2:34:48 PM
Last modification on : Tuesday, October 6, 2020 - 4:28:06 PM

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Regis Orobtchouk, Abdelhalim Layadi, Hamid Gualous, Daniel Pascal, Alain Köster, et al.. High-efficiency light coupling in a submicrometric silicon-on-insulator waveguide. Applied optics, Optical Society of America, 2000, 39 (31), pp.5773. ⟨10.1364/AO.39.005773⟩. ⟨hal-02157824⟩

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