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Conferences > CLEO_SI > 2021 > SM1A > SM1A.7

Up to 50 dB Extinction in Broadband Single-Stage Thermo- Optic Mach-Zehnder Interferometers for Programmable Low-Loss Silicon Nitride Photonic Circuits

Ashutosh Rao, Gregory Moille, Xiyuan Lu, Daron Westly, Michael Geiselmann, Michael Zervas, and Kartik Srinivasan

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Abstract

We demonstrate single-stage thermo-optic Si3N4 interferometers with (46.1±2.5) dB average extinction ratio over 1460-1640 nm (≈50× of typical devices). We analyze performance requirements for creating reconfigurable high-quality-factor resonators in programmable circuits using such interferometers.

© 2021 The Author(s)

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