Classical corpuscular optical theory of squeezed states of light

Semi-classical theory of semiconductor laser noise considers the spontaneous emission fluctuations as the major noise source. We propose a classical corpuscular theory in which a laser beam is considered as a flow of classical particles without mutual interaction. The intrinsic field fluctuations are described as the shot noise associated with the photon production or absorption. The noise linked to mirror losses is taken into account in the form of partition noise. It can be represented by a partition Langevin noise force linked to laser facet reflections.