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Hannover 2013 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 43: Poster II

Q 43.88: Poster

Wednesday, March 20, 2013, 16:00–18:30, Empore Lichthof

Towards a down-conversion source of positively spectrally correlated and decorrelated photon pairs at telecom wavelength — •Thomas Lutz1,2, Piotr Kolenderski1,3, and Thomas Jennewein11University of Waterloo, Institute for Quantum Computing, Waterloo, Canada — 2Universitaet Ulm — 3Nicolaus Copernicus University, Torun, Poland

The frequency correlation (or decorrelation) of photon pairs is of great importance in long-range quantum communications and photonic quantum computing. We experimentally characterize a spontaneous parametric down conversion (SPDC) source, based on Beta*-Barium Borate (BBO) crystal cut for type-II phase matching at 1550 nm which has the capability to emit photons with positive or no spectral correlations. Our system employs a carefully designed detection method exploiting two InGaAs detectors.

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