Photon pair generation using four-wave mixing in a microstructured fibre: theory versus experiment

Alibart, Olivier; Fulconis, J; Wong, G. K. L.; Murdoch, Stuart G.; Wadsworth, William J.; Rarity, JG

doi:10.1088/1367-2630/8/5/067

Cited by 107 publications

(150 citation statements)

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“…While some previous works have analyzed the emitarXiv:1309.2703v1 [quant-ph] 11 Sep 2013 ted flux in the SFWM process [10][11][12], in this paper we aim to present a unified approach leading to explicit conversion efficiency expressions, together with corresponding numerical simulations, valid for the pulsedand monochromatic-pumps regimes, as well as for the degenerate-and non-degenerate-pumps configurations.…”

Section: Introductionmentioning

confidence: 99%

Conversion efficiency in the process of copolarized spontaneous four-wave mixing

2010

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We study the process of co-polarized spontaneous four-wave mixing in single-mode optical fibers, with an emphasis on an analysis of the conversion efficiency. We consider both the monochromaticpumps and pulsed-pumps regimes, as well as both the degenerate-pumps and non-degenerate-pumps configurations. We present analytical expressions for the conversion efficiency, which are given in terms of double integrals. In the case of pulsed pumps we take these expressions to closed analytical form with the help of certain approximations. We present results of numerical simulations, and compare them to values obtained from our analytical expressions, for the conversion efficiency as a function of several key experimental parameters.

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Section: Introductionmentioning

confidence: 99%

Conversion efficiency in the process of copolarized spontaneous four-wave mixing

2010

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“…Recently pumping slightly blue shifted into the normal dispersion region has been shown to generate widely separated, phase matched, parametric amplification peaks [23]. It is this discovery that has stimulated our recent exploration of PCF optical nonlinearities at the single photon level [21,24,25,26].Spontaneous parametric downconversion occurs when a pump photon spontaneously splits into two daughter photons via a three-wave mixing process in a χ (2) nonlinear crystal. By carefully designing the collection scheme and pumping strategy various sources of heralded single photons and entangled photon pairs in the cw and pulsed regimes have been realised [27,28].…”

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Nonclassical Interference and Entanglement Generation Using a Photonic Crystal Fiber Pair Photon Source

et al. 2007

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We demonstrate two key components for optical quantum information processing: a bright source of heralded single photons; and a bright source of entangled photon pairs. A pair of pump photons produces a correlated pair of photons at widely spaced wavelengths (583 nm and 900 nm), via a χ (3) four-wave mixing process. We demonstrate a non-classical interference between heralded photons from independent sources with a visibility of 95%, and an entangled photon pair source, with a fidelity of 89% with a Bell state.Single photons are ideal for quantum technologies, including quantum communication [1] and quantum metrology [2], due to intrinsically low decoherence and easy one-qubit rotations. However, realising two-qubit logic gates for quantum computation requires a massive optical nonlinearity. Measurement-induced nonlinearies can be realised using only single photon sources and detectors, and linear optical networks [3]. Much progress has been made on each of these components, however, progress on linear optical networks is currently limited by the lack of bright single and pair photon sources. Here we describe a solution based on photonic crystal fibres: four wave mixing produces a correlated pair of photons at widely spaced wavelengths (583nm and 900nm). We demonstrate a bright source of heralded single photons, exhibiting a non-classical interference visibility of 95% for independent sources; and a bright entangled pair source, with 89% fidelity with a maximally entangled state. These sources provide an essential toolkit for photonic quantum information processing.Since the original proposal [3] there have been a number of important theoretical improvements [4,5,6] and experimental proof-of-principal demonstrations [7,8,9,10,11,12], which combined make optical quantum computing promising. Experiments have typically relied on producing photons via spontaneous parametric downconversion, and detecting them with silicon avalanche photodetectors (Si APDs) with intrinsic quantum efficiencies of ∼ 70% and no number resolution. However, the practical limit of standard downconversion is five [11,13] or six [14] photons. Tremendous progress has been made in the development of triggered, high efficiency single photon sources [15,16,17,18] (SPSs) and high efficiency, number resolving single photon detectors [19,20], however, these technolgies will not be commonplace in single photon quantum optics labs for some time. Therefore, in order to make further progress in testing single photon optical circuits for generation of large entangled cluster states, error correcting protocols, and measurement of fault tolerant thresholds, there is an urgent practical need for a bright SPS at the visible wavelengths where Si APDs are efficient.The development of microstructured and photonic crystal fibres [22] (PCFs) enables the engineering of profoundly different optical properties to conventional optical fibres, opening the way for a range of new technologies. PCFs with very small solid cores ( Fig. 1(a)) can have zero dispersion wavele...

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“…Технические науки Анализ результатов расчетов показывает, что наличие повреждения в хвостовой части лопасти на участках (18,19) снижает прочность лопасти в комлевом сечении на 16,7 % на скорости 220 км/ч. В целом запас прочности значительно снижается (более чем на 35%) при наличие повреждений одновременно в лонжероне и хвостовой части.…”

Section: ) научно-технический вестник поволжья №5 2017unclassified

Process Approach to Management of Logistic Business Processes in Internet-Trade

Danilova¹,

Ofilova²,

Andreeva³

2017

STVB

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Photon pair generation using four-wave mixing in a microstructured fibre: theory versus experiment

Cited by 107 publications

References 38 publications

Conversion efficiency in the process of copolarized spontaneous four-wave mixing

Conversion efficiency in the process of copolarized spontaneous four-wave mixing

Nonclassical Interference and Entanglement Generation Using a Photonic Crystal Fiber Pair Photon Source

Process Approach to Management of Logistic Business Processes in Internet-Trade

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