Quantum enhanced measurement of an optical frequency comb

Abstract Measuring the spectral properties of an optical frequency comb is among the most fundamental tasks of precision metrology. In contrast to general single-parameter measurement schemes, we demonstrate here single shot multi-parameter estimation of an optical frequency comb at and beyond the s...

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Autores principales:	Y. Cai, J. Roslund, V. Thiel, C. Fabre, N. Treps
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/deb4904839904e3b949efbe9d17e74a1
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spelling	oai:doaj.org-article:deb4904839904e3b949efbe9d17e74a12021-12-02T15:00:56ZQuantum enhanced measurement of an optical frequency comb10.1038/s41534-021-00419-w2056-6387https://doaj.org/article/deb4904839904e3b949efbe9d17e74a12021-05-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00419-whttps://doaj.org/toc/2056-6387Abstract Measuring the spectral properties of an optical frequency comb is among the most fundamental tasks of precision metrology. In contrast to general single-parameter measurement schemes, we demonstrate here single shot multi-parameter estimation of an optical frequency comb at and beyond the standard quantum limit. The mean energy and the central frequency as well as the spectral bandwidth of ultrafast pulses are simultaneously determined with a multi-pixel spectrally resolved (MPSR) apparatus, without changing the photonics architecture. Moreover, using a quantum frequency comb that intrinsically consists of multiple squeezed states in a family of Hermite–Gaussian spectral/temporal modes, the signal-to-noise ratios of the multiple spectral parameters estimation can surpass the standard quantum limit. Combining our multi-pixel detection scheme and the multimode entangled resource could find applications in ultrafast quantum metrology and multimode quantum information processing.Y. CaiJ. RoslundV. ThielC. FabreN. TrepsNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Y. Cai J. Roslund V. Thiel C. Fabre N. Treps Quantum enhanced measurement of an optical frequency comb
description	Abstract Measuring the spectral properties of an optical frequency comb is among the most fundamental tasks of precision metrology. In contrast to general single-parameter measurement schemes, we demonstrate here single shot multi-parameter estimation of an optical frequency comb at and beyond the standard quantum limit. The mean energy and the central frequency as well as the spectral bandwidth of ultrafast pulses are simultaneously determined with a multi-pixel spectrally resolved (MPSR) apparatus, without changing the photonics architecture. Moreover, using a quantum frequency comb that intrinsically consists of multiple squeezed states in a family of Hermite–Gaussian spectral/temporal modes, the signal-to-noise ratios of the multiple spectral parameters estimation can surpass the standard quantum limit. Combining our multi-pixel detection scheme and the multimode entangled resource could find applications in ultrafast quantum metrology and multimode quantum information processing.
format	article
author	Y. Cai J. Roslund V. Thiel C. Fabre N. Treps
author_facet	Y. Cai J. Roslund V. Thiel C. Fabre N. Treps
author_sort	Y. Cai
title	Quantum enhanced measurement of an optical frequency comb
title_short	Quantum enhanced measurement of an optical frequency comb
title_full	Quantum enhanced measurement of an optical frequency comb
title_fullStr	Quantum enhanced measurement of an optical frequency comb
title_full_unstemmed	Quantum enhanced measurement of an optical frequency comb
title_sort	quantum enhanced measurement of an optical frequency comb
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/deb4904839904e3b949efbe9d17e74a1
work_keys_str_mv	AT ycai quantumenhancedmeasurementofanopticalfrequencycomb AT jroslund quantumenhancedmeasurementofanopticalfrequencycomb AT vthiel quantumenhancedmeasurementofanopticalfrequencycomb AT cfabre quantumenhancedmeasurementofanopticalfrequencycomb AT ntreps quantumenhancedmeasurementofanopticalfrequencycomb
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Quantum enhanced measurement of an optical frequency comb

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