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arXiv · 0909.3730

Spatially-temporal dynamics of a passively Q-switched Raman-active solid-state oscillator

V. L. Kalashnikov·A. M. Malyarevich·K. V. Yumashev
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Abstract

The spatially-temporal model of an all-solid-state passively Q-switched oscillator with an active medium providing the stimulated Raman scattering is presented. The model does not presume a Gaussian shape of the cylindrically symmetric modes at both fundamental and Stokes wavelengths. It is found, that the highly-nontrivial spatially-temporal dynamics can be regularized by the optimal choice of the oscillator parameters, viz. initial transmission of a saturable absorber, curvature of a spherical mirror, and output mirror transmission at the fundamental and Stokes wavelengths. As a result, the pulse can be substantially temporally squeezed and spatially broadened at both fundamental and Stokes wavelengths.

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V. L. Kalashnikov, A. M. Malyarevich, K. V. Yumashev. 2009-09-21. Spatially-temporal dynamics of a passively Q-switched Raman-active solid-state oscillator. https://doi.org/10.1016/j.optcom.2009.12.032

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