Engineered optical nonlinearity for quantum light sources

Agata M. Brańczyk; Alessandro Fedrizzi; Thomas M. Stace; Tim C. Ralph; Andrew G. White

doi:10.1364/OE.19.000055

Engineered optical nonlinearity for quantum light sources

Agata M. Brańczyk, Alessandro Fedrizzi, Thomas M. Stace, Tim C. Ralph, Andrew G. White

Research output: Contribution to journal › Article › peer-review

121 Citations (Scopus)

Abstract

Many applications in optical quantum information processing benefit from careful spectral shaping of single-photon wave-packets. In this paper we tailor the joint spectral wave-function of photons created in parametric downconversion by engineering the nonlinearity profile of a poled crystal. We design a crystal with an approximately Gaussian nonlinearity profile and confirm successful wave-packet shaping by two-photon interference experiments. We numerically show how our method can be applied for attaining one of the currently most important goals of single-photon quantum optics, the creation of pure single photons without spectral correlations. (C) 2010 Optical Society of America

Original language	English
Pages (from-to)	55-65
Number of pages	11
Journal	Optics Express
Volume	19
Issue number	1
DOIs	https://doi.org/10.1364/OE.19.000055
Publication status	Published - 3 Jan 2011

Keywords

DOWN-CONVERSION
ENTANGLEMENT
GENERATION
INTERFERENCE
PHOTONS
STATE
FIBER
DOWNCONVERSION
LIMIT

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10.1364/OE.19.000055

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title = "Engineered optical nonlinearity for quantum light sources",

abstract = "Many applications in optical quantum information processing benefit from careful spectral shaping of single-photon wave-packets. In this paper we tailor the joint spectral wave-function of photons created in parametric downconversion by engineering the nonlinearity profile of a poled crystal. We design a crystal with an approximately Gaussian nonlinearity profile and confirm successful wave-packet shaping by two-photon interference experiments. We numerically show how our method can be applied for attaining one of the currently most important goals of single-photon quantum optics, the creation of pure single photons without spectral correlations. (C) 2010 Optical Society of America",

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AU - Brańczyk, Agata M.

AU - Fedrizzi, Alessandro

AU - Stace, Thomas M.

AU - Ralph, Tim C.

AU - White, Andrew G.

PY - 2011/1/3

Y1 - 2011/1/3

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AB - Many applications in optical quantum information processing benefit from careful spectral shaping of single-photon wave-packets. In this paper we tailor the joint spectral wave-function of photons created in parametric downconversion by engineering the nonlinearity profile of a poled crystal. We design a crystal with an approximately Gaussian nonlinearity profile and confirm successful wave-packet shaping by two-photon interference experiments. We numerically show how our method can be applied for attaining one of the currently most important goals of single-photon quantum optics, the creation of pure single photons without spectral correlations. (C) 2010 Optical Society of America

KW - DOWN-CONVERSION

KW - ENTANGLEMENT

KW - GENERATION

KW - INTERFERENCE

KW - PHOTONS

KW - STATE

KW - FIBER

KW - DOWNCONVERSION

KW - LIMIT

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DO - 10.1364/OE.19.000055

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VL - 19

SP - 55

EP - 65

JO - Optics Express

JF - Optics Express

IS - 1

ER -

Engineered optical nonlinearity for quantum light sources

Abstract

Keywords

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