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Proceedings Paper

Theoretical analysis of SBS suppression in fiber amplifier with multi-point pump
Author(s): Haichuan Zhao; Mengmeng Tao; Yongxiang Zhu; Zhenbao Wang; Pengling Yang; Yan Yan; Yong Wu; Xisheng Ye
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Paper Abstract

The output power of a narrow line-width laser is usually limited by the Stimulated Brillouin Scattering effect. In Master Oscillator Power Amplifier structures, multi-point pump could rearrange the gain distribution along the fiber, leading to the suppression of the Stimulated Brillouin Scattering effect with maintained amplification efficiency. A theoretical model concerning 100W-level fiber amplifiers is proposed. Stimulation is performed to analyze the amplification process of the laser signal and Stimulated Brillouin Scattering. The results demonstrate that the power of scattering light decreases from 3.2W to 6.8mW (with two-point pump) indicating the effectiveness of this new technology in Stimulated Brillouin Scattering suppression.

Paper Details

Date Published: 4 May 2015
PDF: 6 pages
Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 95431P (4 May 2015); doi: 10.1117/12.2181831
Show Author Affiliations
Haichuan Zhao, Northwest Institute of Nuclear Technology (China)
Mengmeng Tao, Northwest Institute of Nuclear Technology (China)
Yongxiang Zhu, Northwest Institute of Nuclear Technology (China)
Zhenbao Wang, Northwest Institute of Nuclear Technology (China)
Pengling Yang, Northwest Institute of Nuclear Technology (China)
Yan Yan, Northwest Institute of Nuclear Technology (China)
Yong Wu, Northwest Institute of Nuclear Technology (China)
Xisheng Ye, Northwest Institute of Nuclear Technology (China)
Shanghai institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 9543:
Third International Symposium on Laser Interaction with Matter
Yury M. Andreev; Zunqi Lin; Xiaowu Ni; Xisheng Ye, Editor(s)

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