Record single-to-noise ratio in active and passive AlGaAs sources of entangled photons
Claire Autebert, G. Maltese, Aristide Lemaître, Maria I. Amanti, F. Baboux, S. Ducci · 2017
We investigate the performances of AlGaAs sources of entangled photons based on spontaneous parametric down-conversion. We demonstrate a signal-to-noise ratio of 1730, opening the way to the utilization of these devices for long distance quantum communications.