  We describe the observation of a degaussification protocol that maps
individual pulses of squeezed light onto non-Gaussian states. This effect is
obtained by sending a small fraction of the squeezed vacuum beam onto an
avalanche photodiode, and by conditioning the single-shot homodyne detection of
the remaining state upon the photon-counting events. The experimental data
provides a clear evidence of phase-dependent non-Gaussian statistics. This
protocol is closely related to the first step of an entanglement distillation
procedure for continuous variables.
