Degenerate three-level laser with parametric amplifier and squeezed vacuum

Details Degenerate three-level laser with parametric amplifier and squeezed vacuum Degenerate three-level laser with parametric amplifier and squeezed vacuum

2007-01-31

arxiv.org/abs/quant-ph/0701236v1

Physics

Quantum Physics

Scientific paper

Applying stochastic differential equations, we study the squeezing and statistical properties of the cavity and output modes of a degenerate three-level laser whose cavity contains a parametric amplifier and coupled to a squeezed vacuum reservoir. We consider the case in which the top and bottom levels of the three-level cascade atoms injected into the cavity are coupled by the pump mode emerging from the parametric amplifier. It turns out that the presence of the squeezed vacuum reservoir and the parametric amplifier contribute considerably to the mean photon number and the degree of squeezing of the cavity and output modes. It appears that almost perfect squeezing can be achieved at steady state and at threshold for a suitable choice of parameters.

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