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Proceedings Paper

Three-photon entanglement in structured χ(2) media
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Paper Abstract

We investigate production of three-photon states in cascaded parametric down-conversion (PDC). The analysis includes preparation of Greenberger-Horne-Zeilinger polarization-entangled states in cascaded type-II and type-I PDC in the framework of considering the dual-grid structure that involves two periodically poled crystals. Considering cascaded optical parametric oscillator (OPO) driven by a sequence of laser pulses with Gaussian time-dependent envelopes, we investigate quantum statistical properties of high intensity mode generated in intracavity three-photon splitting. Calculating the normalized third-order correlation function below-and at the generation threshold, we demonstrate that in the pulsed regime, depending on the duration of pulses and the time-interval separations between them, the degree of three-photon-number correlation essentially exceed the analogous one for the case of continuous pumping.

Paper Details

Date Published: 25 January 2012
PDF: 10 pages
Proc. SPIE 8414, Photonics and Micro- and Nano-structured Materials 2011, 84140A (25 January 2012); doi: 10.1117/12.923124
Show Author Affiliations
T. V. Gevorgyan, Institute for Physical Research (Armenia)
G. Yu. Kryuchkyan, Institute for Physical Research (Armenia)
Yerevan State Univ. (Armenia)


Published in SPIE Proceedings Vol. 8414:
Photonics and Micro- and Nano-structured Materials 2011
Rafael Kh. Drampyan, Editor(s)

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