15 March 2004 Numerical investigation of spherical aberration influence on the phase conjugation quality at SBS
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Abstract
Here consideration is given to the influence of spherical aberrations, smooth within a beam that arise in the optical channel of laser setups on the quality of phase conjugation at stimulated Brillouin scattering (SBS). A numerical simulation of phase conjugation at SBS was conducted. It was approximated to real conditions and took into account such factors as transient processes, diffraction of radiation, 3D of the medium, reverse influence of Stokes radiation on laser radiation (SBS saturation). It has been obtained that aberration of defocusing type is dangerous from the point of view of a considerable decrease of the reflection coefficient and the phase conjugation quality both in the quasi-steady-state and substantially transient mode of SBS excitation.
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Fedor A. Starikov, Fedor A. Starikov, A. O. Shkrebko, A. O. Shkrebko, } "Numerical investigation of spherical aberration influence on the phase conjugation quality at SBS", Proc. SPIE 5481, Laser Optics 2003: Wavefront Transformation and Laser Beam Control, (15 March 2004); doi: 10.1117/12.558139; https://doi.org/10.1117/12.558139
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