Open AccessInfluences of effective gain length and attenuation coefficient on output energy of stimulated Brillouin scattering in water
Author(s) -
Xiaofeng He,
Jianling Xia,
Jiulin Shi,
Juan Liu,
Shujing Li,
Jianan Liu,
Wei Fang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.054207
Subject(s) - brillouin scattering , attenuation , attenuation coefficient , optics , energy (signal processing) , attenuation length , scattering , materials science , power (physics) , physics , laser , atomic physics , computational physics , quantum mechanics
In this paper, the effects of attenuation coefficient and effective gain length on output energy of stimulated Brillouin scattering (SBS) in water are investigated theoretically and experimentally. The experimental results indicate that the smaller the attenuation coefficient, the higher the output energy of SBS is. When the energy of incident laser is very high and the effective gain length is long enough, the SBS may obtain high enough energy thereby reach an extremely strong peak power due to the pulse compression; once it exceeds the threshold of SRS or second-order SBS, the SBS is able to excite an SRS or a second-order SBS as a new source and consumes a part of its own energy. Therefore, the longer the effective gain length, the lower the output energy of SBS is.