| 组合型光纤相位共轭器的数值模拟 |
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| 引用本文： | 周涛,陈军.组合型光纤相位共轭器的数值模拟[J].强激光与粒子束,2003,15(6):547-550. |
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| 作者姓名： | 周涛 陈军 |
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| 作者单位： | 浙江大学 现代光学仪器国家重点实验室， 浙江 杭州 310027 |
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| 基金项目： | 国家自然科学基金中国工程物理研究院联合基金资助课题(10076015) |
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| 摘 要： | 组合光纤是一种结合了小口径光纤SBS阈值低和大口径光纤损伤阈值高的特点而形成的新型光纤相位共轭器。通过建立数学模型，数值计算了组合光纤中SBS形成的过程，并对其特性参数进行了一定的理论分析。结果表明组合光纤不但可以大幅度降低SBS阈值、获得高反射率和扩大动态范围，而且通过优化其几何尺寸可以抑制Stokes波形的波动现象并显著压缩泵浦光脉冲。
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| 关 键 词： | 相位共轭 受激布里渊散射 光纤组合 |
| 文章编号： | 1001-4322(2003)06-0547-04 |
| 收稿时间： | 2002/7/18 |
| 修稿时间： | 2002年7月18日 |
Analysis of stimulated Brillouin scattering in combined optical fiber |
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| ZHOU Tao,CHEN Junngzhou ,China.Analysis of stimulated Brillouin scattering in combined optical fiber[J].High Power Laser and Particle Beams,2003,15(6):547-550. |
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| Authors: | ZHOU Tao CHEN Junngzhou China |
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| Institution: | State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027，Ｃhina |
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| Abstract: | A theoretical model for the new type phase conjugator using combined fiber, which is composed of two fibers with different core diameters connected by an internal taper, is established. By numerical calculation the whole SBS process in combined fiber has been illustrated clearly and its key characters have been discussed. The results show that the combined fiber can greatly decrease SBS threshold and improve reflectivity while behaves a much larger dynamic range. Furthermore, with optimum dimensions, the combined fiber can suppress the power modulation of Stokes wave and show a potentiality to considerably compress laser pulse. |
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| Keywords: | Optical fiber phase conjugation Stimulated Brillouin scattering Combined optical fiber |
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