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Grating coupled low loss Ge-on-Si waveguides and multimode interferometers for the mid-infrared

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Abstract

Germanium-on-silicon is a promising platform for planar photonics over the entire mid-infrared range. We report here grating coupled Ge-on-Si waveguides with record low losses of 0.6dB/cm, multimode interferometers and Mach-Zehnder interferometers.

© 2015 Optical Society of America

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