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    • Keywords


      Parametric amplifier; squeezing; entanglement; photon number correlations.

    • Abstract


      We analyse the entanglement of the light produced by a three-level laser whose cavity contains a parametric amplifier, with the cavity mode driven by the coherent light and coupled to a squeezed vacuum reservoir. Employing stochastic differential equations associated with the normal ordering resulted from the pertinent master equation, the quadrature variances and entanglement of the two-mode light are obtained and photon statistics of the two-light modes is discussed. It is found that the three-level laser generates squeezed light under certain conditions, with maximum intracavity squeezing being 89.7% below the coherent state level. We also show that the parametric amplifier enhances the mean photon number and photon number correlation.

    • Author Affiliations



      1. Department of Physics, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia
      2. Department of Physics, Jimma University, P.O. Box 378, Jimma, Ethiopia
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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