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Journal Articles Applied optics Year : 2000

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

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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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Dates and versions

hal-02157824 , version 1 (17-06-2019)

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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, 2000, 39 (31), pp.5773. ⟨10.1364/AO.39.005773⟩. ⟨hal-02157824⟩
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