Friday 25th November, 12-1pm
Abstract: In entanglement distribution-based quantum repeaters, one of the key resources is optically mediated entanglement, that is generated and distributed among multiple network nodes in a heralded fashion. Next to optical quantum memories, most quantum repeater architectures also require multiplexed sources of entangled photon pairs, as well as photon detection that can distinguish between the multiplexed modes. Here we demonstrate an alignment-free, frequency multiplexed photon pair source that is based on fiber-pigtailed, cavity-enhanced spontaneous parametric down-conversion (SPDC) in a nonlinear crystal and is easy to integrate with a practical quantum repeater. We show characterization of multiple pairs of spectrally-resolved modes, as required for a quantum repeater. We also demonstrate optical interface of our source with Tm-based quantum memory.
