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Reflectionless grating couplers for Silicon-on-Insulator photonic integrated circuits
D Vermeulen1, Y De Koninck, Y Li
1Photonics Research Group, Department of Information Technology, Ghent University - imec, B-9000 Ghent, Belgium. Diedrik.Vermeulen@acacia-inc.com
Optics Express
|October 6, 2012
Abstract:
We propose a novel grating coupler design which is inherently reflectionless by focusing the reflected light away from the entrance waveguide. The design rules for this reflectionless grating coupler are explained and the grating coupler design is investigated by means of 3D FDTD simulations for the case of a Silicon-on-Insulator based platform.
