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Conferences > LS > 2022 > JW4A > JW4A.26

Quantum-limited Loss and Phase Estimation Using All-pass Ring Resonators

Alexandre Belsley, Euan J. Allen, Animesh Datta, and Jonathan C. F. Matthews

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Abstract

We derive the fundamental quantum limits in estimating the absorption coefficient and refractive index of an analyte using all-pass ring resonators. We find coherent-states are optimal probes and can outperform any quantum probe single-pass strategy.

© 2022 The Author(s)

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