Fig. 5: Remote distribution through a telecom fiber.
a A schematic of the storage experiment with a 5-km long fiber spool on the telecom mode, and a memory storage time of 25 μs. b Second-order cross-correlation \({g}_{si}^{(2)}\) as a function of the relative detection time τsi. The peak at τsi = 1.47 μs (see inset) stems from coincidence detections with stored 979 nm photons, whereas the larger peak at τsi = − 23.5 μs is due to 979 nm photons directly transmitted through the memory. The binning size is 2 ns.
