  Propagation of broadband photon pairs over deployed telecommunication fibers
is used to achieve nonlocal dispersion compensation without the deliberate
introduction of negative dispersion. This is made possible by exploiting
time-energy entanglement and the positive and negative dispersive properties of
the fiber. We demonstrate preservation of photon timing correlations after
transmission over two multi-segment 10km spans of deployed fiber and up to 80km
of laboratory-based fiber.
