Low-loss optical waveguides made with a high-loss material

Abstract For guiding light on a chip, it has been pivotal to use materials and process flows that allow low absorption and scattering. Based on subwavelength gratings, here, we show that it is possible to create broadband, multimode waveguides with very low propagation losses despite using a strongl...

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Bibliographic Details
Main Authors: Darius Urbonas, Rainer F. Mahrt, Thilo Stöferle
Format: Article
Language:English
Published: Nature Publishing Group 2021-01-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-020-00454-w