Phase conjugation at SBS of pulse laser radiation using kinoform optics

Fedor A. Starikov; Yu. V. Dolgopolov; Gennady G. Kochemasov; Stanislav M. Kulikov; Vladimir K. Ladagin; Stanislav A. Sukharev

doi:10.1117/12.385407

12 May 2000 Phase conjugation at SBS of pulse laser radiation using kinoform optics

Fedor A. Starikov, Yu. V. Dolgopolov, Gennady G. Kochemasov, Stanislav M. Kulikov, Vladimir K. Ladagin, Stanislav A. Sukharev

Author Affiliations +

Proceedings Volume 3930, Laser Resonators III; (2000) https://doi.org/10.1117/12.385407
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

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 components, 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 first experimental data obtained at a Nd laser facility show the validity of the simulation results. The developed concept of SBS-mirror with unique properties can be applied for the improvement of wide class of industrial lasers.

Citation Download Citation

Fedor A. Starikov, Yu. V. Dolgopolov, Gennady G. Kochemasov, Stanislav M. Kulikov, Vladimir K. Ladagin, and Stanislav A. Sukharev "Phase conjugation at SBS of pulse laser radiation using kinoform optics", Proc. SPIE 3930, Laser Resonators III, (12 May 2000); https://doi.org/10.1117/12.385407

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