Polarization entangled photon-pair source based on quantum nonlinear photonics and interferometry

We present a versatile, high-brightness, guided-wave source of polarization entangled photons, emitted at a tele-com wavelength. Photon-pairs are generated using an integrated type-0 nonlinear waveguide, and subsequently prepared in a polarization entangled state via a stabilized fiber interferomete...

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Bibliographic Details
Published in:Optics communications 2014, Vol.327, p.7-16
Main Authors: Kaiser, F, Ngah, Lutfi Arif, Issautier, A, Delord, T, Aktas, D, d'Auria, Virginia, de Micheli, Marc, Kastberg, Anders, Labonté, Laurent, Alibart, O, Martin, Anthony, Tanzilli, S
Format: Article
Language:English
Subjects:
Optics
Physics
Quantum Physics
Online Access:Get full text
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Summary:We present a versatile, high-brightness, guided-wave source of polarization entangled photons, emitted at a tele-com wavelength. Photon-pairs are generated using an integrated type-0 nonlinear waveguide, and subsequently prepared in a polarization entangled state via a stabilized fiber interferometer. We show that the single photon emission wavelength can be tuned over more than 50 nm, whereas the single photon spectral bandwidth can be chosen at will over more than five orders of magnitude (from 25 MHz to 4 THz). Moreover, by performing entanglement analysis, we demonstrate a high degree of control of the quantum state via the violation of the Bell inequalities by more than 40 standard deviations. This makes this scheme suitable for a wide range of quantum optics experiments, ranging from fundamental research to quantum information applications. We report on details of the setup, as well as on the characterization of all included components, previously outlined in F. Kaiser et al. (2013 Laser Phys. Lett. 10, 045202).
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2014.03.056