1.5 μ m band Hong-Ou-Mandel experiment using photon pairs generated in two independent dispersion shifted fibers
Hiroki Takesue · Applied Physics Letters · 2007
This letter reports a Hong-Ou-Mandel experiment using two photon pairs in the 1.5μm band that are generated in two independent dispersion shifted fibers. A quantum interference with 53% visibility was observed. Thanks to the narrow bandwidth of the photon pairs, the required accuracy for photon arrival time adjustment was relaxed to a few millimeters, which is a great advantage for an application to a quantum relay.