High-quality polarization entangled photon pair source based on a type-II PPLN waveguide

Anthony Martin (1) , Amandine Issautier (1) , Florian Kaiser (1) , Abu Thomas (2) , Harrald Herrmann (2) , Wolfgang Sohler (2) , Marc de Micheli (1) , Daniel Barry Ostrowsky (1) , Olivier Alibart (1) , Sébastien Tanzilli (1)

1 LPMC - Laboratoire de physique de la matière condensée
2 Angewandte Physik

We realized a novel polarization entangled photon- pair source at 1310 nm based on a birefringent titanium in- diffused waveguide integrated on periodically poled lithium ni- obate. Using an original setup, we characterized the quantum properties of the pairs by measuring two-photon interference patterns in both Hong-Ou-Mandel and Bell inequality configura- tions. We obtained interference net visibilities of 99%, which represent the best results ever reported for similar configura- tions.

Mots clés: Entanglement generation; Non-linear integrated Optics; Entanglement generation.

Domaines: Physique Quantique [quant-ph]

Anthony Martin, Amandine Issautier, Florian Kaiser, Abu Thomas, Harrald Herrmann, et al.. High-quality polarization entangled photon pair source based on a type-II PPLN waveguide. 15th European Conference on Integrated Optics (ECIO'10), Apr 2010, Cambridge, United Kingdom. ⟨hal-00862878⟩