TY - JOUR
T1 - Joint spectral characterization of photon-pair sources
AU - Zielnicki, Kevin
AU - Garay-Palmett, Karina
AU - Cruz-Delgado, Daniel
AU - Cruz-Ramirez, Hector
AU - O’Boyle, Michael F.
AU - Fang, Bin
AU - Lorenz, Virginia O.
AU - U’Ren, Alfred B.
AU - Kwiat, Paul G.
N1 - Publisher Copyright:
© 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/6/7
Y1 - 2018/6/7
N2 - The ability to determine the joint spectral properties of photon pairs produced by the processes of spontaneous parametric downconversion (SPDC) and spontaneous four-wave mixing (SFWM) is crucial for guaranteeing the usability of heralded single photons and polarization-entangled pairs for multi-photon protocols. In this paper, we compare six different techniques that yield either a characterization of the joint spectral intensity or of the closely related purity of heralded single photons. These six techniques include: (i) scanning monochromator measurements, (ii) a variant of Fourier transform spectroscopy designed to extract the desired information exploiting a resource-optimized technique, (iii) dispersive fibre spectroscopy, (iv) stimulated-emission-based measurement, (v) measurement of the second-order correlation function g(2) for one of the two photons, and (vi) two-source Hong–Ou–Mandel interferometry. We discuss the relative performance of these techniques for the specific cases of a SPDC source designed to be factorable and SFWM sources of varying purity, and compare the techniques’ relative advantages and disadvantages.
AB - The ability to determine the joint spectral properties of photon pairs produced by the processes of spontaneous parametric downconversion (SPDC) and spontaneous four-wave mixing (SFWM) is crucial for guaranteeing the usability of heralded single photons and polarization-entangled pairs for multi-photon protocols. In this paper, we compare six different techniques that yield either a characterization of the joint spectral intensity or of the closely related purity of heralded single photons. These six techniques include: (i) scanning monochromator measurements, (ii) a variant of Fourier transform spectroscopy designed to extract the desired information exploiting a resource-optimized technique, (iii) dispersive fibre spectroscopy, (iv) stimulated-emission-based measurement, (v) measurement of the second-order correlation function g(2) for one of the two photons, and (vi) two-source Hong–Ou–Mandel interferometry. We discuss the relative performance of these techniques for the specific cases of a SPDC source designed to be factorable and SFWM sources of varying purity, and compare the techniques’ relative advantages and disadvantages.
KW - Nonlinear optics
KW - joint spectral intensity
KW - purity
KW - quantum optics
KW - spontaneous four-wave mixing
KW - spontaneous parametric downconversion
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U2 - 10.1080/09500340.2018.1437228
DO - 10.1080/09500340.2018.1437228
M3 - Review article
AN - SCOPUS:85044988009
SN - 0950-0340
VL - 65
SP - 1141
EP - 1160
JO - Journal of Modern Optics
JF - Journal of Modern Optics
IS - 10
ER -