We report the realization of a fiber coupled polarization entangled photon-pair source at 1310 nm based on a birefringent titanium in-diffused waveguide integrated on periodically poled lithium niobate. By taking advantage of a dedicated and high-performance setup, we characterized the quantum properties of the pairs by measuring two-photon interference in both Hong-Ou-Mandel and standard Bell inequality configurations. We obtained, for the two sets of measurements, interference net visibilities reaching nearly 100%, which represent important and competitive results compared to similar waveguide-based configurations already reported. These results prove the relevance of our approach as an enabling technology for long-distance quantum communication.
@article{arxiv.1007.4358,
title = {Polarization entangled photon-pair source based on a type-II PPLN waveguide emitting at a telecom wavelength},
author = {A. Martin and A. Issautier and H. Herrmann and W. Sohler and D. B. Ostrowsky and O. Alibart and S. Tanzilli},
journal= {arXiv preprint arXiv:1007.4358},
year = {2012}
}
Comments
13 pages, 4 figures, to appear in New Journal of Physics