Generation dynamics of a self-starting self-pumped phase-conjugate Nd:YAG laser with a three-mirror interferometer inside the loop cavity

Svetlana A. Kyalbieva; Andrey V. Gavrilov; P. E. Teterin

doi:10.1117/12.558151

15 March 2004 Generation dynamics of a self-starting self-pumped phase-conjugate Nd:YAG laser with a three-mirror interferometer inside the loop cavity

Svetlana A. Kyalbieva, Andrey V. Gavrilov, P. E. Teterin

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Proceedings Volume 5481, Laser Optics 2003: Wavefront Transformation and Laser Beam Control; (2004) https://doi.org/10.1117/12.558151
Event: Laser Optics 2003, 2003, St. Petersburg, Russian Federation

Abstract

The generation dynamics of a pulse-periodical Nd:YAG laser with a three-mirror interferometer inside a loop cavity is investigated numerically. A parametrical back coupling is made by dynamics gratings in an active element inside the interferometer. An index mirror of the interferometer lets the intensity of colliding reference waves change and influence on the formation of holographic gain gratings, born in the process of four-wave mixing. The mathematical model is based on kinetic equations in the single mode and single frequency approximation in description of radiation propagation in the free space and in an active medium. Also the mathematical model includes the coupled waves equation in the description of four-wave mixing. The mathematical modeling has shown, that the investigated scheme allows to receive larger power output parameters of radiation in a regime of phase-conjugation in LiF:F₂^-, in comparison with an ordinary loop scheme. The comparative analysis of generation dynamics in an offered scheme and in the loop scheme wihtout any three-mirror interferometer showed the differentiation of mechanisms of dynamic gratings formation in Nd:YAG active mediums and defined conditions for optimal work of each schemes. The conditions for optimal work of each schemes were defined.

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Svetlana A. Kyalbieva, Andrey V. Gavrilov, and P. E. Teterin "Generation dynamics of a self-starting self-pumped phase-conjugate Nd:YAG laser with a three-mirror interferometer inside the loop cavity", Proc. SPIE 5481, Laser Optics 2003: Wavefront Transformation and Laser Beam Control, (15 March 2004); https://doi.org/10.1117/12.558151

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KEYWORDS

Interferometers

Nd:YAG lasers

Mathematical modeling

Phase conjugation

Four wave mixing

Free space

Holographic interferometry

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