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arXiv · 1007.4358

Polarization entangled photon-pair source based on a type-II PPLN waveguide emitting at a telecom wavelength

A. Martin·A. Issautier·H. Herrmann·W. Sohler·D. B. Ostrowsky·O. Alibart·S. Tanzilli
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Abstract

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.

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A. Martin, A. Issautier, H. Herrmann, W. Sohler, D. B. Ostrowsky, O. Alibart, S. Tanzilli. 2010-07-25. Polarization entangled photon-pair source based on a type-II PPLN waveguide emitting at a telecom wavelength. https://doi.org/10.1088/1367-2630/12/10/103005

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