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Long-Period-Grating Filters Based on Coupling to Leaky Modes in Lithium-Niobate-on-Insulator Waveguides

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Abstract

We propose filters on lithium-niobate-on-insulator waveguides based on coupling to leaky modes with polymer long-period gratings formed on the waveguides. Our experimental filters designed for different wavelengths and polarizations show contrasts higher than 15 dB.

© 2021 The Author(s)

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