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Geometric Loss Reduction in Tight Bent Waveguides for Silicon Photonics

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Abstract

A low-loss bent waveguide with a Clothoid shape whose width is adjusted along the curvature is demonstrated. For a bend radius of 1.6 µm, the loss is reduced by 0.34 dB to less than 0.04 dB for a single S-shape bend when compared to a standard circular waveguide bend.

© 2018 The Author(s)

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