Single-photon frequency shifting with a quadrature phase-shift keying modulator

Abstract Deterministic frequency manipulation of single photons is an essential tool for quantum communications and quantum networks. We demonstrate a 15.65 GHz frequency shift for classical and nonclassical light using a commercially available quadrature phase-shift keying modulator. The measured s...

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Autores principales:	Changchen Chen, Jane E. Heyes, Jeffrey H. Shapiro, Franco N. C. Wong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4affba325715409993f8a403642296bb
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spelling	oai:doaj.org-article:4affba325715409993f8a403642296bb2021-12-02T14:12:07ZSingle-photon frequency shifting with a quadrature phase-shift keying modulator10.1038/s41598-020-79511-82045-2322https://doaj.org/article/4affba325715409993f8a403642296bb2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79511-8https://doaj.org/toc/2045-2322Abstract Deterministic frequency manipulation of single photons is an essential tool for quantum communications and quantum networks. We demonstrate a 15.65 GHz frequency shift for classical and nonclassical light using a commercially available quadrature phase-shift keying modulator. The measured spectrum of frequency-shifted single photons indicates a high carrier-to-sideband ratio of 30 dB. We illustrate our frequency shifter’s utility in quantum photonics by performing Hong–Ou–Mandel quantum interference between two photons whose initial frequency spectra overlap only partially, and showing visibility improvement from 62.7 to 89.1% after one of the photons undergoes a corrective frequency shift.Changchen ChenJane E. HeyesJeffrey H. ShapiroFranco N. C. WongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Changchen Chen Jane E. Heyes Jeffrey H. Shapiro Franco N. C. Wong Single-photon frequency shifting with a quadrature phase-shift keying modulator
description	Abstract Deterministic frequency manipulation of single photons is an essential tool for quantum communications and quantum networks. We demonstrate a 15.65 GHz frequency shift for classical and nonclassical light using a commercially available quadrature phase-shift keying modulator. The measured spectrum of frequency-shifted single photons indicates a high carrier-to-sideband ratio of 30 dB. We illustrate our frequency shifter’s utility in quantum photonics by performing Hong–Ou–Mandel quantum interference between two photons whose initial frequency spectra overlap only partially, and showing visibility improvement from 62.7 to 89.1% after one of the photons undergoes a corrective frequency shift.
format	article
author	Changchen Chen Jane E. Heyes Jeffrey H. Shapiro Franco N. C. Wong
author_facet	Changchen Chen Jane E. Heyes Jeffrey H. Shapiro Franco N. C. Wong
author_sort	Changchen Chen
title	Single-photon frequency shifting with a quadrature phase-shift keying modulator
title_short	Single-photon frequency shifting with a quadrature phase-shift keying modulator
title_full	Single-photon frequency shifting with a quadrature phase-shift keying modulator
title_fullStr	Single-photon frequency shifting with a quadrature phase-shift keying modulator
title_full_unstemmed	Single-photon frequency shifting with a quadrature phase-shift keying modulator
title_sort	single-photon frequency shifting with a quadrature phase-shift keying modulator
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4affba325715409993f8a403642296bb
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Single-photon frequency shifting with a quadrature phase-shift keying modulator

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