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Ultra-fast heralded single photon source based on telecom technology

Abstract : The realization of an ultra-fast source of heralded single photons emitted at the wavelength of 1540 nm is reported. The presented strategy is based on state-of-the-art telecom technology, combined with off-the-shelf fiber components and waveguide non-linear stages pumped by a 10 GHz repetition rate laser. The single photons are heralded at a rate as high as 2.1 MHz with a heralding efficiency of 42%. Single photon character of the source is inferred by measuring the second-order autocorrelation function. For the highest heralding rate, a value as low as 0.023 is found. This not only proves negligible multi-photon contributions but also represents the best measured value reported to date for heralding rates in the MHz regime. These prime performances, associated with a device-like configuration, are key ingredients for both fast and secure quantum communication protocols.
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https://hal.archives-ouvertes.fr/hal-01134179
Contributor : Virginia d'Auria <>
Submitted on : Thursday, June 25, 2015 - 6:50:45 PM
Last modification on : Tuesday, May 26, 2020 - 6:50:51 PM
Long-term archiving on: : Friday, October 9, 2015 - 5:55:48 PM

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Lutfi-Arif Bin-Ngah, Olivier Alibart, Laurent Labonté, Virginia d'Auria, Sébastien Tanzilli. Ultra-fast heralded single photon source based on telecom technology. Laser and Photonics Reviews, Wiley-VCH Verlag, 2015, 9, pp.L1-L5. ⟨10.1002/lpor.201400404⟩. ⟨hal-01134179⟩

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