Tracking the polarisation state of light via Hong-Ou-Mandel interferometry

Natapon Harnchaiwat; Feng Zhu; Niclas Westerberg; Erik Gauger; Jonathan Leach

doi:10.1364/OE.382622

Tracking the polarisation state of light via Hong-Ou-Mandel interferometry

Natapon Harnchaiwat, Feng Zhu, Niclas Westerberg, Erik Gauger, Jonathan Leach

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22 Citations (Scopus)

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Abstract

We provide a statistically robust and accurate framework to measure and track the polarisation state of light employing Hong-Ou-Mandel interference. This is achieved by combining the concepts of maximum likelihood estimation and Fisher information applied to photon detection events. Such an approach ensures that the Cramér-Rao bound is saturated and changes to the polarisation state are established in an optimal manner. Using this method, we show that changes in the linear polarisation state can be measured with 0.6 arcminute precision (0.01 degrees).

Original language	English
Pages (from-to)	2210-2220
Number of pages	11
Journal	Optics Express
Volume	28
Issue number	2
Early online date	15 Jan 2020
DOIs	https://doi.org/10.1364/OE.382622
Publication status	Published - 20 Jan 2020

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.382622Licence: CC BY

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Tracking the polarisation state of light via Hong-Ou-Mandel interferometry

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