Abstract
Using energy correlated photon pairs created in parametric down-conversion we demonstrate two-photon interference effects in fiber interferometers separated by 4.3 km of optical fiber. The measured 86% interference visibilities confirm the purely quantum mechanical origin of these correlations.
- Received 7 March 1994
DOI:https://doi.org/10.1103/PhysRevLett.73.1923
©1994 American Physical Society