Back-Reflection Free Grating Couplers on Silicon-on-Insulator

Conference: ECOC 2016 - 42nd European Conference on Optical Communication
09/18/2016 - 09/22/2016 at Düsseldorf, Deutschland

Proceedings: ECOC 2016

Pages: 3Language: englishTyp: PDF

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Song, Jeong Hwan; Rottenberg, Xavier (IMEC, Kapeldreef 75, Leuven, 3001, Belgium)

We propose a design of novel grating couplers having low back-reflections on silicon-on-insulator (SOI) where grating trenches are asymmetrically etched. 3D-FDTD simulations show that the average back-reflection of 1dB bandwidth in the proposed grating coupler is –41dB.