Statistical and Squeezing property of non-degenerate three-level laser inside a cavity driven by coherent light coupled to two mode thermal reservoir”

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Published ID: IJNRDTH00087

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Fikadu Birhane Alemayehu

Laser, Maser Reservoir and optical Light

Abstract In this thesis, we study the statistical and squeezing properties of coherently driven non-degenerate three level lasers in a cavity coupled to two mode thermal reservoirs. In the case of interacting driving coherent light with a cavity mode and non degenerate three level atoms, we obtain the Hamiltonian equation. After that, we develop the master equation and quantum langiven equations for the system under consideration and then, we derive the equations of evolution of the expectation values of the cavity mode and atomic operators. We then, determine the steady-state solutions of the resulting equations in the adiabatic (large time) approximation scheme. By the help of this equation and solutions, we obtained the photon statistics and quadrature squeezing. We find that the global mean photon number for mode a(b) increases with the amplitude of the driving coherent light (Ω) and with the rate of stimulated emission (γc). We also obtained that the photon number statistics of single light mode is super- Poisonian photon statistics which shows that each of the two radiation modes are in a chaotic state of light. We verify that the global mean photon number for two mode light increases with the amplitude of the driving coherent light (Ω) and with the rate of stimulated emission (γc). Then, we show that the light generated by coherently driven non-degenerate three level lasers coupled to two mode thermal reservoir owns a super-poisonian statistics and it is a chaotic light. Finally, we find that the light mode generated by such light is in a squeezed state with a maximum degree of squeezing (96.22%) below the coherent level

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Fikadu Birhane Alemayehu (October-2023). Statistical and Squeezing property of non-degenerate three-level laser inside a cavity driven by coherent light coupled to two mode thermal reservoir”. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 8(10), 496-566. https://ijnrd.org/papers/IJNRDTH00087.pdf

Volume 8 Issue 10, October-2023

Pages : 496-566

Paper Reg. ID: IJNRD_204179

Published Paper Id: IJNRDTH00087

Research Area: Physics

Author Type: Foreign Author

Country: Gambella, Gambella, Ethiopia

Published Paper PDF: https://ijnrd.org/papers/IJNRDTH00087.pdf

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Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)

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