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

F. Piacentini; P. Traina; A. Della Frera; A. Tosi; C. Scarcella; A. Ruggeri; A. Gulinatti; M. Ghioni; S. V. Polyakov; A. Migdall; A. Giudice; G. Brida; I. P. Degiovanni; M. Genovese

doi:10.1117/12.2017378

6 May 2013 An extremely low-noise heralded single-photon source without temporal post-selection

F. Piacentini, P. Traina, A. Della Frera, A. Tosi, C. Scarcella, A. Ruggeri, A. Gulinatti, M. Ghioni, S. V. Polyakov, A. Migdall, A. Giudice, G. Brida, I. P. Degiovanni, M. Genovese

Author Affiliations +

Proceedings Volume 8773, Photon Counting Applications IV; and Quantum Optics and Quantum Information Transfer and Processing; 87730S (2013) https://doi.org/10.1117/12.2017378
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

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.

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F. Piacentini, P. Traina, A. Della Frera, A. Tosi, C. Scarcella, A. Ruggeri, A. Gulinatti, M. Ghioni, S. V. Polyakov, A. Migdall, A. Giudice, G. Brida, I. P. Degiovanni, and M. Genovese "An extremely low-noise heralded single-photon source without temporal post-selection", Proc. SPIE 8773, Photon Counting Applications IV; and Quantum Optics and Quantum Information Transfer and Processing, 87730S (6 May 2013); https://doi.org/10.1117/12.2017378

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