title: Heralded source of bright multi-mode mesoscopic sub-Poissonian light.
abstract: In a direct detection scheme, we observed 7.8 dB of twin-beam squeezing for multi-mode two-color squeezed vacuum generated via parametric downconversion. Applying post-selection, we conditionally prepared a sub-Poissonian state of light containing 6.3·105photons per pulse on the average with the Fano factor 0.63±0.01. The scheme can be considered as the heralded preparation of pulses with the mean energy varying between tens and hundreds of fJ and the uncertainty considerably below the shot-noise level. Such pulses can be used in metrology (for instance, for radiometer calibration), as well as for probing multi-mode nonlinear optical effects.
authors.forename: T Sh
authors.initials: TSh
authors.lastname: Iskhakov
authors.forename: V C
authors.initials: VC
authors.lastname: Usenko
authors.forename: U L
authors.initials: UL
authors.lastname: Andersen
authors.forename: R
authors.initials: R
authors.lastname: Filip
authors.forename: M V
authors.initials: MV
authors.lastname: Chekhova
authors.forename: G
authors.initials: G
authors.lastname: Leuchs