Quantum theory of a squeezed-pump laser
Monika A. M. Marte, Daniel F. Walls · Physical Review A · 1988
We analyze a model of a laser pumped by an incoherent source in a squeezed vacuum state. The squeezed pump introduces an anisotropy of phase in the laser output. Above threshold two stable solutions are found, with phases corresponding to the directions along which the noise of the bath is quenched. These solutions are illustrated by the potential function of the laser field. An analysis of fluctuations shows that the laser field has reduced phase fluctuations but not below the quantum limit.