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Demonstration of an ultra-compact bend for four modes based on pixelated meta-structure

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Abstract

A multimode bend for TE0, TE1, TE2 and TE3 modes with a radius of 3.9 μm is demonstrated. The insertion loss is measured to be < 1.8 dB, and the crosstalk is below −17 dB.

© 2020 The Author(s)

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