Fig. 4: The delayed counts conditioned by the electric signal from pulse laser. | npj Quantum Information

Fig. 4: The delayed counts conditioned by the electric signal from pulse laser.

From: Robust entanglement distribution via telecom fibre assisted by an asynchronous counter-propagating laser light

Fig. 4

a–c correspond to the counts from detector \({{\rm{D}}}_{{\rm{A}}^{\prime} }\), DR″ and \({{\rm{D}}}_{{{\rm{B}}}^{\prime}}\) respectively. The figure d shows the delayed counts of \({{\rm{D}}}_{{{\rm{B}}}^{\prime}}\) conditioned by the photon detection at \({{\rm{D}}}_{{\rm{A}}^{\prime} }\) with delayed time Δt1. Each point is integrated for 100 ps in d.

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