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Photon Counting Applications IV; and Quantum Optics and Quantum Information Transfer and Processing

DOI: 10.1117/12.2017378

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

Proceedings article published in 2013 by Fabrizio Piacentini, Paolo Traina, Della Frera, A., Adriano Della Frera, Alberto Tosi, Carmelo Scarcella, C., Alessandro Ruggeri ORCID, Angelo Gulinatti, Massimo Ghioni, M., Sergey V. Polyakov, S. V., Alan Migdall and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

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.