| 泵浦脉冲宽度对受激布里渊散射保真度的影响 |
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| 引用本文： | 张祎,吕志伟,何伟明,王雨雷,哈斯. 泵浦脉冲宽度对受激布里渊散射保真度的影响[J]. 量子电子学报, 2007, 24(3): 369-373 |
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| 作者姓名： | 张祎 吕志伟 何伟明 王雨雷 哈斯 |
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| 作者单位： | 哈尔滨工业大学光电子技术研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学光电子技术研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学光电子技术研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学光电子技术研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学光电子技术研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为了研究泵浦脉冲宽度对受激布里渊散射(SBS)相位共轭保真度的影响,分别采用CCl4、N-hexane、CS2三种不同的SBS介质,在泵浦脉宽分别为12 ns、7 ns和2 ns的情况下,采用列阵相机法对保真度进行实验研究.结果表明:泵浦脉宽对SBS相位共轭保真度有很大影响.当泵浦脉宽远大于介质声子寿命时,保真度保持较高数值,且比较稳定;当泵浦脉宽逐渐接近并近似等于声子寿命时,保真度的值开始逐渐降低,降低的幅度也逐渐增大,稳定性也开始变差;当泵浦脉宽减小到小于声子寿命时,保真度大幅度降低,波动性增大,相位共轭情况很差.
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| 关 键 词： | 非线性光学 相位共轭保真度 列阵相机 声子寿命 受激布里渊散射 |
| 文章编号： | 1007-5461（2007）03-0369-05 |
| 收稿时间： | 2006-04-19 |
| 修稿时间： | 2006-05-24 |
The influence of pulse-width on SBS phase conjugation fidelity |
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| ZHANG Yi,L Zhi-wei,HE Wei-ming,WANG Yu-lei,HA Si. The influence of pulse-width on SBS phase conjugation fidelity[J]. Chinese Journal of Quantum Electronics, 2007, 24(3): 369-373 |
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| Authors: | ZHANG Yi L Zhi-wei HE Wei-ming WANG Yu-lei HA Si |
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| Affiliation: | ZHANG Yi,L(U) Zhi-wei,HE Wei-ming,WANG Yu-lei,HA Si |
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| Abstract: | In order to research the influence of pulse-width on stimulated Brillouin scattering(SBS)phase conjugation fidelity,experiments were performed on three different SBS media CCl4,N-hexane and CS2. The method of array camera is used under the conditions that pulse-width is respectively 12 ns,7 ns,2 us. Experimental results show that pulse-width has a great influence on SBS fidelity. The fidelity value of SBS has higher standard,and more stability when pulse-width is a greatly larger than phonon lifetime;It gradually falls down when pulse-width equals to phonon lifetime;It declines rapidly and has strong fluctuation when pulse-width is less than phonon lifetime. |
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| Keywords: | nonlinear optics phase conjugation fidelity array camera phonon lifetime stimulated Brillouin scattering |
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