Abstract

Nonlinear optical properties of stimulated Brillouin scattering (SBS) to signal detection in water are analyzed. With the threshold characteristics, SBS only occurs when the high power laser is focused in the SBS cell. When there is an object present in front of the focus, it leads to lower incident intensity and then SBS does not occur. The backward SBS signal depends on the focusing location. The nonlinear optical properties of SBS process in the focusing regime are analyzed theoretically. With the object coming near to the focusing center, the backward Stokes signal rises up from zero to a maximum, and then grows to saturation. The delay time of the echo signal to pump signal can give the object location. In experiment, the peak position of varying rate of energy can give object location.

© 2008 Chinese Optics Letters

Stimulated Brillouin scattering in optical fibers

Andrey Kobyakov, Michael Sauer, and Dipak Chowdhury
Adv. Opt. Photon. 2(1) 1-59 (2010)

Competition between stimulated Raman and Brillouin scattering processes in CF₄ gas

Lior Ben Yehud, Daniel Belker, Gad Ravnitzki, and Amiel A. Ishaaya
Opt. Lett. 39(4) 1026-1029 (2014)

Stimulated Raman and Brillouin scattering, nonlinear focusing, thermal blooming, and optical breakdown of a laser beam propagating in water

B. Hafizi, J. P. Palastro, J. R. Peñano, T. G. Jones, L. A. Johnson, M. H. Helle, D. Kaganovich, Y. H. Chen, and A. B. Stamm
J. Opt. Soc. Am. B 33(10) 2062-2072 (2016)

Gain characteristics of stimulated Brillouin scattering in fused silica

Bin Chen, Zhenxu Bai, Xuanning Hun, Jianping Wang, Can Cui, Yaoyao Qi, Bingzheng Yan, Jie Ding, Kun Wang, Yulei Wang, and Zhiwei Lu
Opt. Express 31(4) 5699-5707 (2023)

Theory of nonlinear optics in dielectric spheres. III. Partial-wave-index dependence of the gain for stimulated Brillouin scattering

C. D. Cantrell
J. Opt. Soc. Am. B 8(10) 2181-2189 (1991)