  Entanglement distribution is a critical technique that enables numerous
quantum applications. Most fiber-based long-distance experiments reported to
date have utilized photon pair sources generated in bulk optical crystals, with
the entanglement encoded in the polarization degree of freedom. Here, we create
time-energy entanglement for photon pairs generated from an on-chip silicon
ring resonator via SFWM process and report the distribution of the entanglement
over standard optical fiber with distance >81 km. Our work paves the way for
future large-scale quantum networks with connect of distant quantum nodes.
