Photon antibunching in pulsed squeezed light generated via parametric amplification
Masato Koashi, K. Kono, Takuya Hirano, M. Matsuoka · Physical Review Letters · 1993
We have measured the intensity correlation of pulsed squeezed light generated by a degenerate optical parametric amplifier seeding weak coherent input signal. When the signal was deamplified, the correlation showed antibunching and the probability distribution of the photon number was sub-Poissonian, both of these being nonclassical properties of light.