title: Local Sampling of the Wigner Function at Telecom Wavelength with Loss-Tolerant Detection of Photon Statistics.
abstract: We report the experimental point-by-point sampling of the Wigner function for nonclassical states created in an ultrafast pulsed type-II parametric down-conversion source. We use a loss-tolerant time-multiplexed detector based on a fiber-optical setup and a pair of photon-number-resolving avalanche photodiodes. By capitalizing on an expedient data-pattern tomography, we assess the properties of the light states with outstanding accuracy. The method allows us to reliably infer the squeezing of genuine two-mode states without any phase reference.
authors.affiliation: Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Harder
authors.affiliation: Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany.|Max-Planck-Institut für die Physik des Lichts, Günther-Scharowsky-Straße 1, Bau 24, 91058 Erlangen, Germany.
authors.forename: Ch
authors.initials: Ch
authors.lastname: Silberhorn
authors.affiliation: Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic.
authors.forename: J
authors.initials: J
authors.lastname: Rehacek
authors.affiliation: Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic.
authors.forename: Z
authors.initials: Z
authors.lastname: Hradil
authors.affiliation: Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic.
authors.forename: L
authors.initials: L
authors.lastname: Motka
authors.affiliation: Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic.
authors.forename: B
authors.initials: B
authors.lastname: Stoklasa
authors.affiliation: Max-Planck-Institut für die Physik des Lichts, Günther-Scharowsky-Straße 1, Bau 24, 91058 Erlangen, Germany.|Departamento de Óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain.
authors.forename: L L
authors.initials: LL
authors.lastname: Sánchez-Soto