  We report the experimental realization of heralded distribution of
single-photon path entanglement at telecommunication wavelengths in a
repeater-like architecture. The entanglement is established upon detection of a
single photon, originating from one of two spontaneous parametric down
conversion photon pair sources, after erasing the photon's which-path
information. In order to certify the entanglement, we use an entanglement
witness which does not rely on post-selection. We herald entanglement between
two locations, separated by a total distance of 2 km of optical fiber, at a
rate of 1.6 kHz. This work paves the way towards high-rate and practical
quantum repeater architectures.
