Heralded source of bright multi-mode mesoscopic sub-Poissonian light

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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 postselection, we conditionally prepared a sub-Poissonian state of light containing 6.3 . 105 photons 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 non-linear optical effects. (C) 2016 Optical Society of America
Original languageEnglish
JournalOptics Letters
Volume41
Issue number10
Pages (from-to)2149-2152
Number of pages4
ISSN0146-9592
DOIs
Publication statusPublished - 2016
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