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Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
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http://hdl.handle.net/123456789/2618
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| Title: | The Output Light from a Three-Level Laser and a Coherently Driven Cavity Mode |
| Authors: | Assegid, Mengistu |
| Advisors: | Dr. Fesseha Kassahun, |
| Copyright: | Jun-2010 |
| Date Added: | 6-May-2012 |
| Abstract: | Abstract
In this thesis we study the statistical and squeezing properties of the output light from
a degenerate three-level laser and a coherently driven cavity mode coupled to a vacuum
reservoir. Applying the propagator method [1], we first obtain the Q function for the cavity
coherent light as well as the light generated by the three-level laser. We then determine the
Q function for the superposition of the two light beams. Applying the input-output relation,
we determine the Q function for the output light.
Employing the Q function for the output light, we have calculated the mean photon
number, the variance of the photon number, the quadrature variance, and the squeezing
spectrum. It is found that the mean photon number we have obtained is greater than the
mean photon number obtained using the Q function derived from a single master equation
for the cavity mode (i.e when the cavity coherent photons are interacting with the three-level
atoms). However, this interaction doesn’t affect the quadrature variance and the squeezing
spectrum of the output light. |
| URI: | http://hdl.handle.net/123456789/2618 |
| Appears in: | Thesis - Physics
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