M. Koashi et al., PHOTON ANTIBUNCHING IN PULSED SQUEEZED-LIGHT GENERATED VIA PARAMETRICAMPLIFICATION, Physical review letters, 71(8), 1993, pp. 1164-1167
We have measured the intensity correlation of pulsed squeezed light ge
nerated by a degenerate optical parametric amplifier seeding weak cohe
rent input signal. When the signal was deamplified, the correlation sh
owed antibunching and the probability distribution of the photon numbe
r was sub-Poissonian, both of these being nonclassical properties of l
ight.