Dynamics of Three-Level Laser Pumped by Electron Bombardment
No Thumbnail Available
Date
2017-03
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
In this project, we discuss the quantum properties of the light generated by
a three-level laser with the closed cavity and coupled to a vacuum reservoir.
The three-level atoms available in the closed cavity are pumped from the
bottom to the top level by means of electron bombardment. Our analysis is
carried out by putting the noise operators associated with the vacuum reser-
voir in normal order. We have found that the light emitted from the top level
is in a chaotic state in any regime of laser operation. On the other hand, the
light emitted from the intermediate level is in a coherent state when the laser
is operating well above threshold and is chaotic when the laser is operating
at threshold. The maximum quadrature squeezing of the superposed light
modes is found to be 50 % below the vacuum-state level. We have shown
that the maximum local quadrature squeezing is 64.5 %: Moreover the local
quadrature squeezing increases with the frequency interval and approaches
to the global quadrature squeezing
Keywords: Stimulated emission, Photon statistics, Global and Local Quadra-
ture squeezing
Description
Keywords
Stimulated Emission, Photon Statistics, Global and Local Quadra- Ture Squeezing