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Pulsed squeezed vacuum characterization without homodyning

J. Wenger·J. Fiurasek·R. Tualle-Brouri·N. J. Cerf·Ph. Grangier
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Abstract

Direct photon detection is experimentally implemented to measure the squeezing and purity of a single-mode squeezed vacuum state without an interferometric homodyne detection. Following a recent theoretical proposal [arXiv quant-ph/0311119], the setup only requires a tunable beamsplitter and a single-photon detector to fully characterize the generated Gaussian states. The experimental implementation of this procedure is discussed and compared with other reference methods.

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J. Wenger, J. Fiurasek, R. Tualle-Brouri, N. J. Cerf, Ph. Grangier. 2004-03-31. Pulsed squeezed vacuum characterization without homodyning. https://doi.org/10.1103/physreva.70.053812

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