Optimization of periodic single-photon sources based on combined multiplexing

摘要

We consider periodic single-photon sources with combined multiplexing in which the outputs of severaludtime-multiplexed sources are spatially multiplexed.We give a full statistical description of such systems in orderudto optimize them with respect to maximal single-photon probability.We carry out the optimization for a particularudscenario which can be realized in bulk optics and its expected performance is extremely good at the present state of the art. We find that combined multiplexing outperforms purely spatially or time-multiplexed sources for certainudparameters only, and we characterize these cases. Combined multiplexing can have the advantages of possibly using less nonlinear sources, achieving higher repetition rates, and the potential applicability for continuous pumping. We estimate an achievable single-photon probability between 85% and 89%.udDOI: 10.1103/