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中文摘要：
从实验和理论上研究了受激布里渊散射（SBS）光脉冲波形．在Nd：YAG调Q激光器中实验研究了SBS光脉冲波形随抽运光参数、结构参数和介质参数的变化规律，并利用SBS理论模型进行了数值模拟，实验与数值模拟结果的变化趋势基本一致．结果表明，抽运光能量越小，透镜焦距越短，镜．池间距越长，介质声子寿命越长，SBS光脉冲波形就越不容易出现调制现象．分析和讨论了抽运光参数、结构参数和介质参数对SBS光脉冲波形的影响机理．
英文摘要：
in this paper, the pulse waveform of stimulated Brillouin scattering （SBS） is investigated experimentally and theoretically. The variations of SBS pulse waveform with pump parameters, structural parameters and medium parameters are experimentally investigated with a Nd： YAG Q-switched laser, and numerically simulated using SBS theory model. The theoretical calculations are in good agreement with the experimental results. The results indicate that modulation of pulse waveform is difficult to realige with low pump energy, short focal length, long lens-cell distance and long phonon life time. The influence of the pump parameters, structural parameters and medium parameters on SBS pulse waveform is discussed extensively.
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