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Expanding the Quantum Photonic Toolbox with Low-Loss AlGaAs-on-Insulator

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Abstract

We present the building blocks for a programmable quantum processor with AlGaAs-on-insulator integrated photonics, including low-loss waveguide crossers and > 30 dB extinction tunable interferometers, which we benchmark via photonic qubit demultiplexing with high extinction.

© 2022 The Author(s)

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