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Proceedings Paper

Superhigh-fidelity of phase conjugation at SBS using new-generation kinoform optics
Author(s): Fedor A. Starikov; Yu. V. Dolgopolov; S. A. Kovaldov; Gennady G. Kochemasov; A. V. Kopalkin; Stanislav M. Kulikov; Vladimir K. Ladagin; Stanislav A. Sukharev; Natalia N. Gerasimenko
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Paper Abstract

Using the most complete in literature physical model of the non-steady-state stimulated Brillouin scattering (SBS), the numerical study is carried out of phase conjugation (PC) in the SBS-mirror that consists of an angular selector of Stokes radiation, an ordered raster of small lenses, a main focusing lens, and an SBS-cell. The ordered raster with controlled varying of its parameters allows to perform the effective angular filtering of non-conjugated Stokes component, to reduce the local light loads, and to avoid the competitive nonlinear effects. An optimal configuration of such SBS-mirror has been determined. It has the unique properties as compared with the current SBS-mirrors. It fixedly yields the PC quality that is near to an ideal (the PC coefficient is about of or more than 95%) at the selector transmittance 50 - 70% and any level of SBS saturation, i.e. any reflection coefficient. In the SBS-mirrors of different types the high PC quality in the focused beams takes place at the high reflection coefficients only that is difficult to realize as a rule. The experimental data obtained at a Nd laser facility show the validity of the simulation results. The developed conception of SBS-mirror with unique properties can be applied for the improvement of wide class of industrial lasers.

Paper Details

Date Published: 2 March 2001
PDF: 12 pages
Proc. SPIE 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control, (2 March 2001); doi: 10.1117/12.417737
Show Author Affiliations
Fedor A. Starikov, Russian Federal Nuclear Ctr. (Russia)
Yu. V. Dolgopolov, Russian Federal Nuclear Ctr. (Russia)
S. A. Kovaldov, Russian Federal Nuclear Ctr. (Russia)
Gennady G. Kochemasov, Russian Federal Nuclear Ctr. (Russia)
A. V. Kopalkin, Russian Federal Nuclear Ctr. (Russia)
Stanislav M. Kulikov, Russian Federal Nuclear Ctr. (Russia)
Vladimir K. Ladagin, Russian Federal Nuclear Ctr. (Russia)
Stanislav A. Sukharev, Russian Federal Nuclear Ctr. (Russia)
Natalia N. Gerasimenko, Russian Federal Nuclear Ctr. (Russia)

Published in SPIE Proceedings Vol. 4353:
Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control
Leonid N. Soms; Vladimir E. Sherstobitov, Editor(s)

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