Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects

Q 30.11: Poster

Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais

Prerequesites for continuous variable measurements on a type II PDC source — •Thomas Dirmeier1,2, Nitin Jain1,2, Georg Harder3, Gerd Leuchs1,2, Christoph Marquardt1,2, and Christine Silberhorn1,31Max Planck Institut für die Physik des Lichts, Erlangen — 2Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg — 3Integrierte Quantenoptik, Universität Paderborn

Parametric down-conversion (PDC) sources are known to be a robust and versatile tool for the generation of photon pair states. It has been demonstrated that by using nonlinear waveguides and engineering their properties, pulsed type II PDC sources are able to produce entangled states, which are both spatially and spectrally single-mode [1]. Additionally, the single-mode nature of the produced states allows their efficient use in continuous variable quantum information experiments.

We present the progress made towards realizing the detection of the noise properties of the generated photon pairs via homodyne detection and discuss technical challenges and the applied solutions.

[1] G. Harder et. al., "An optimized photon pair source for quantum circuits," Opt. Express 21, 13975-13985 (2013)

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