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Proceedings Paper

Engineering of spectral properties of two-photon states, preliminary results
Author(s): Alessio Avella; Giorgio Brida; Maria Chekhova; Marco Genovese; Marco Gramegna; Mélissa Vieille-Grosjean; Alexander Shurupov
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Paper Abstract

We present an experimental implementation of spectral properties engineering on biphoton light, emitted via ultrafast type II spontaneous parametric down conversion (SPDC), based on the shaping of the pump pulse spectrum and propagation of the emitted correlated photons through dispersive media. Spectral properties of a biphoton state are fully characterized by the two-photon spectral amplitude (TPSA). Exploiting the group velocity dispersion (GVD) induced by the passage of optical fields through dispersive media, an energy to time two dimensional Fourier transform of the TPSA is operated: this returns a technique to reconstruct TPSA by means of a temporal measurement among the delay between the laser pulse emission (trigger) and the detection times of the two correlated photons. Exploiting this kind of measurement it is possible to deeply resolve the interference pattern in the shape of TPSA. In this research we report on the conditions under which subtle structure on TPSA spectra can be deliberately engineered via modulation of the pump beam spectrum.

Paper Details

Date Published: 15 October 2012
PDF: 9 pages
Proc. SPIE 8518, Quantum Communications and Quantum Imaging X, 851812 (15 October 2012); doi: 10.1117/12.981993
Show Author Affiliations
Alessio Avella, Istituto Nazionale di Ricerca Metrologica (Italy)
Univ. degli Studi di Torino (Italy)
Giorgio Brida, Istituto Nazionale di Ricerca Metrologica (Italy)
Maria Chekhova, Max-Planck Institute for the Science of Light (Germany)
Lomonosov Moscow State Univ. (Russian Federation)
Marco Genovese, Istituto Nazionale di Ricerca Metrologica (Italy)
Marco Gramegna, Istituto Nazionale di Ricerca Metrologica (Italy)
Mélissa Vieille-Grosjean, Paris-Sud Univ. (France)
Alexander Shurupov, Istituto Nazionale di Ricerca Metrologica (Italy)

Published in SPIE Proceedings Vol. 8518:
Quantum Communications and Quantum Imaging X
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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