| 单频脉冲光纤放大器中的SBS效应实验研究 |
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| 引用本文： | 何幸锴,冯力天,沈琪皓,伍波,兰戈,周鼎富. 单频脉冲光纤放大器中的SBS效应实验研究[J]. 激光技术, 2012, 36(2): 191-193. DOI: 10.3969/j.issn.1001-3806.2012.02.011 |
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| 作者姓名： | 何幸锴 冯力天 沈琪皓 伍波 兰戈 周鼎富 |
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| 作者单位： | 1.西南技术物理研究所 成都 610041 |
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| 摘 要： | 为了研究受激布里渊散射(SBS)效应对单频脉冲光纤激光放大器中脉冲波形的影响,搭建了单频脉冲光纤激光放大器系统。实验中观测到脉冲波形的畸变,继续提高功率,畸变处出现峰值功率极高的尖峰,分析认为,光纤中的二次受激布里渊散射导致了尖峰脉冲出现。为验证这一结论,构造包含二阶Stokes波的耦合方程组,进行了模拟仿真。结果表明,该峰值功率极高的尖峰正是SBS效应的二阶Stokes波。
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| 关 键 词： | 激光技术 光纤激光放大器 受激布里渊散射 波形畸变 二阶Stokes波 |
| 收稿时间： | 2011-05-11 |
Experimental study about effect of stimulated Brillouin scattering in single frequency pulsed fiber amplifiers |
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| HE Xing-kai , FENG Li-tian , SHENG Qi-hao , WU Bo , LAN Ge , ZHOU Ding-fu. Experimental study about effect of stimulated Brillouin scattering in single frequency pulsed fiber amplifiers[J]. Laser Technology, 2012, 36(2): 191-193. DOI: 10.3969/j.issn.1001-3806.2012.02.011 |
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| Authors: | HE Xing-kai FENG Li-tian SHENG Qi-hao WU Bo LAN Ge ZHOU Ding-fu |
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| Affiliation: | (Southwest Institute of Technical Physics,Chengdu 610041,China) |
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| Abstract: | In order to study the stimulated Brillouin scattering(SBS)effect on the pulse form of pulsed fiber laser amplifiers, a single frequency fiber laser amplifier system was built and its pulse waveform distortion was observed in the experiment. If continuing to improve pump power, a high power spike appeared at the distorted location, which was induced by the second-order SBS effect in a fiber. To verify this conclusion, the coupled equations contains the second-order Stokes wave were built and simulated and the results showed that the high peak power spike was the second-order Stokes wave of SBS effect. |
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| Keywords: | laser technique fiber laser amplifier stimulated Brillouin scattering waveform distortion second-order Stokes wave |
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