Quantum properties of nondegenerate three-level laser coupled vacuum reservoir

Alemu, Menisha

doi:10.47176/ijpr.24.3.21416

Quantum properties of nondegenerate three-level laser coupled vacuum reservoir

Document Type : Original Article

Author

Menisha Alemu

Department of Physics, Wolkite University P. O. Box 07, Wolkite, Ethiopia

https://doi.org/10.47176/ijpr.24.3.21416

Abstract

In this paper, we have studied the squeezing and statistical properties of the light produced by a three-level laser whose cavity contains a parametric amplifier, and with the cavity mode driven by coherent light and coupled to a vacuum reservoir. We obtain stochastic differential equations associated with the normal ordering using the pertinent master equation. By making use of the solutions to the resulting differential equations, we calculate the quadrature variances. We also determine the mean and variance of the photon number for the cavity mode by employing the Q function. It is found that the parametric amplifier increases the degree of squeezing, while the driving coherent light does not have any effect on the squeezing. Moreover, the mean photon number increases considerably due to the driving coherent light and the parametric amplifier.

Keywords

stochastic differential equations

C-number Langevin equations

vacuum reservoir

mean photon number

Subjects

Optics and Photonics

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