The Dynamics of Two-Level Laser
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Date
2016-02
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Addis Ababa University
Abstract
In this thesis, we study the quantum properties of the light generated by a two-level
laser in which two-level atoms in a cavity coupled to a vacuum reservoir are pumped
to the top level at a rate of rca. We consider the case in which two-level atoms and the
cavity mode are interacting with vacuum reservoir. Employing the Master equation
for the system under consideration, we obtained the quantum Langevin equations for
the cavity mode and atomic operators. Employing the solution of these equations
along with the correlation properties of the noise operators, we calculate the mean
and the variance of the photon number of the cavity light. We have found that the
variance of the photon number is greater than the mean of the photon number and
hence the photon statistics of the cavity light mode is super-Poissonian. Moreover,
we determine the quadrature variance and the power spectrum of the cavity light
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Dynamics of Two-Level Laser