Abstract In order to measure the Brillouin frequency shift (BFS) of the medium, this paper proposes a method using mixtures in a two-cell stimulated Brillouin scattering system, which uses a medium to be measured as amplifier medium and a mixture medium as generator medium. The seed light from the generator gains effective amplification in the amplifier and the amplification ratio changes with the mixing fraction. Only when the BFS of the mixture medium is equal to that of the medium in the amplifier does the seed light obtain the maximum amplification ratio. The method has the advantage of independence of the wavelength of the incident light.
Received: 02 June 2006
Revised: 25 June 2006
Accepted manuscript online:
PACS:
42.65.Es
(Stimulated Brillouin and Rayleigh scattering)
Fund: Project
supported by the National Natural Science Foundation of China (Grant
Nos~10476009 and 60478020).
Cite this article:
Hasi Wu-Li-Ji(哈斯乌力吉), Lü Zhi-Wei(吕志伟), Li Qiang(李强), and He Wei-Ming(何伟明) A method to measure the Brillouin frequency shift of the medium through Brillouin amplification ratio 2007 Chinese Physics 16 154
The 260-W coherent beam combining of two compact fibre amplifier chains Wang Xiao-Lin(王小林), Ma Yan-Xing(马阎星), Zhou Pu(周朴), He Bing(何兵), Xue Yu-Hao(薛宇豪), Liu Chi(刘驰), Li Zhen(李震), Xiao Hu(肖虎), Xu Xiao-Jun(许晓军), Zhou Jun(周军), Liu Ze-Jin(刘泽金), and Zhao Yi-Jun(赵伊君) . Chin. Phys. B, 2011, 20(11): 114203.
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