On the measurement of two-photon single-mode coupling efficiency in parametric down-conversion photon sources

Castelletto, Stefania; Degiovanni, I. P.; Migdall, Alan L.; Ware, Michael

doi:10.1088/1367-2630/6/1/087

Cited by 29 publications

(22 citation statements)

References 25 publications

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“…a silicon-based single-photon avalanche diode (SPAD). 28,29 Being this configuration similar to previous experiments, 23, 30 the obtained coupling efficiency of the heralded photon was ≈ 13%. The heralding SPAD exploited is a prototype module based on a red-enhanced SPAD (RE SPAD in Fig.…”

Section: Methodssupporting

confidence: 90%

An extremely low-noise heralded single-photon source without temporal post-selection

et al. 2013

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With the recent progresses in quantum technologies, single photon sources have gained a primary relevance. Here we present a heralded single photon source characterized by an extremely low level of noise photons, realized by exploiting low-jitter electronics and detectors and fast custom-made electronics used to control an optical shutter (a LiNbO3 waveguide optical switch) at the output of the source. This single photon source showed a second-order autocorrelation function g(2)(0) = 0:005(7), and an Output Noise Factor (defined as the ratio of noise photons to total photons at the source output) of 0:25(1)%, among the best ever achieved

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Section: Methodssupporting

confidence: 90%

An extremely low-noise heralded single-photon source without temporal post-selection

et al. 2013

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“…Heralded SPSs are also primarily used for quantum radiometry. [ 46,47 ] Increasing the pump power causes a linear increase in the small but limited probability of generating two consecutive photon pairs, due to the inherent randomness of the nonlinear process, a phenomenon which degrades the quantum optical channel information. Thus, the double pair's rate has to be reduced to an acceptable level by limiting the pump power, and this also limits the generation rate of the desired single pairs.…”

Section: Ed Quantum Lightmentioning

confidence: 99%

Electrically Driven Quantum Light Sources

Boretti

Rosa

Mackie

et al. 2015

Advanced Optical Materials

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Typical applications of quantum light require optical sources which generate either individual photons or entangled (correlated) photons. For the sake of practicality and scalability, these quantum sources should be easily produced, operate at room temperature, and be electrically excited and controlled. Here, recent research on quantum sources obtained from electrically driven (ED) devices constructed from p-n junctions integrated in planar optical cavities, micropillars, nanowires, photonic crystals, and active plasmonic elements is reviewed. Single-photon and entangled-photon sources are distinguished by their different roles in the development of either quantum cryptography or quantum computing protocols, and the different types of devices used to produce them are highlighted, with a focus on their spectral emission, brightness, and conditions of operation. Achievements to date are summarized and compared with prerequisites for the practical use of these sources. Important recent results that could provide future novel quantum sources are also in focus, where more practical requirements could be addressed by the judicious engineering of materials and careful device design

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“…The bi-photon field Φ(ρ 1 , ρ 2 , t 1 , t 2 ) is analytic only at the first-order approximation of the transverse wavevectors and depends on the Fourier transform of the pump angular distribution and the phase-matching function (as in Ref. [65]). …”

Section: Single Mode Preparationmentioning

confidence: 99%

Heralded single photon sources: a route towards quantum communication technology and photon standards

Castelletto

Scholten

2008

Eur. Phys. J. Appl. Phys.

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Abstract. Single photon counting, based on single photon sources and detectors, is a key ingredient for certain applications aiming at new quantum information technologies. Quantum cryptography, quantum radiometry, distributed quantum computing, as well as adjacent technologies such as biomedical and astronomical imaging, and low power classical communication also rely on single-photon technology. This paper reviews the present status of single photon sources and related counting measurement techniques, based on correlated (or heralded) photons in parametric down-conversion, and their possible impact on the above mentioned technologies, as well as an assessment for photon standards in the future. PACS

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On the measurement of two-photon single-mode coupling efficiency in parametric down-conversion photon sources

Cited by 29 publications

References 25 publications

An extremely low-noise heralded single-photon source without temporal post-selection

An extremely low-noise heralded single-photon source without temporal post-selection

Electrically Driven Quantum Light Sources

Heralded single photon sources: a route towards quantum communication technology and photon standards

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