Theoretical analysis of SBS suppression in fiber amplifier with multi-point pump

Haichuan Zhao; Mengmeng Tao; Yongxiang Zhu; Zhenbao Wang; Pengling Yang; Yan Yan; Yong Wu; Xisheng Ye

doi:10.1117/12.2181831

4 May 2015 Theoretical analysis of SBS suppression in fiber amplifier with multi-point pump

Haichuan Zhao, Mengmeng Tao, Yongxiang Zhu, Zhenbao Wang, Pengling Yang, Yan Yan, Yong Wu, Xisheng Ye

Proceedings Volume 9543, Third International Symposium on Laser Interaction with Matter; 95431P (2015) https://doi.org/10.1117/12.2181831
Event: Third International Symposium on Laser Interaction with Matter, 2014, Jiangsu, China

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.

Citation Download Citation

Haichuan Zhao, Mengmeng Tao, Yongxiang Zhu, Zhenbao Wang, Pengling Yang, Yan Yan, Yong Wu, and Xisheng Ye "Theoretical analysis of SBS suppression in fiber amplifier with multi-point pump", Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 95431P (4 May 2015); https://doi.org/10.1117/12.2181831

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