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

OPTICS COMMUNICATIONS

卷:283

Article

Kalashnikov, V. L.¹  Malyarevich, A. M.²  Yumashev, K. V.² 

[1] TU Wien, Inst Photon, A-1040 Vienna, Austria

[2] Inst Opt Mat & Technol, Minsk 220013, BELARUS

关键词: Q-switching;    Solid-state lasers;    Stimulated Raman scattering;    Spatially-temporal dynamics;   

DOI  :  10.1016/j.optcom.2009.12.032

来源: Elsevier

【 摘 要 】

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 an optimal choice of 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. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free