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Single-Mode GeSn Mid-Infrared Waveguides on Group-IV Substrates

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Abstract

We design low-loss single-mode GeSn mid-infrared waveguides on group-IV substrates including Si substrates and Ge-on-SOI substrates. The waveguide geometries under single mode condition are optimized for different GeSn alloy compositions and polarizations.

© 2014 Optical Society of America

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