We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at a wavelength of 1.5-um and a clock of 10 GHz. Using superconducting single photon detectors, we observed a coincidence to accidental count ratio (CAR) as high as 4000. The developed photon-pair source may find broad application in quantum information systems as well as quantum entanglement experiments.
@article{arxiv.0705.3875,
title = {Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock},
author = {Qiang Zhang and Xiuping Xie and Hiroki Takesue and Sae Woo Nam and Carsten Langrock and Martin Fejer and Yoshihisa Yamamoto},
journal= {arXiv preprint arXiv:0705.3875},
year = {2009}
}
Comments
6 pages, 4 figures, presented at 2007 CLEO conference