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

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

2009-09-21

arxiv.org/abs/0909.3730v1

Optics Communications, vol. 283, pp. 1854-1858 (2010)

Physics

Optics

13 pages, 8 figures, XVI Annual Seminar on Nonlinear Phenomena in Complex Systems (May 19-22, 2009, Minsk, Belarus)

Scientific paper

10.1016/j.optcom.2009.12.032

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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