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Conference Papers Year : 2006

High-efficiency diffraction grating coupler for multimode optical interconnect

Abstract

The device presented in this paper is designed for coupling a free space optical wave under quasi-normal incidence in and out of a highly multimode waveguide with high efficiency. It uses two resonant diffraction gratings at the substrate-waveguide interface that are made of a shallow metal grating, covered with a high refractive index layer. It is shown that the resonant structure can theoretically diffract up to 90% of the incident energy in and out of the waveguiding layer. The geometrical parameters of the structure and the tolerances can easily be achieved by conventional technology means.

Dates and versions

ujm-00122929 , version 1 (05-01-2007)

Identifiers

Cite

J. Franc, N. Destouches, D. Blanc-Pélissier, J.-C. Pommier, S. Tonchev, et al.. High-efficiency diffraction grating coupler for multimode optical interconnect. Photonics Europe, Apr 2006, France. pp.61851F, ⟨10.1117/12.666710⟩. ⟨ujm-00122929⟩
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