| 利用受激布里渊散射改善偏振抽取腔光束质量的研究 |
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| 引用本文： | 王骐,于欣,王月珠,鞠有伦,陈德应,贾永伟.利用受激布里渊散射改善偏振抽取腔光束质量的研究[J].光学学报,2002,22(10):255-1258. |
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| 作者姓名： | 王骐 于欣 王月珠 鞠有伦 陈德应 贾永伟 |
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| 作者单位： | 哈尔滨工业大学光电子技术研究所,可调谐激光技术国家级重点实验室,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金 (6 99880 0 2 )，哈尔滨工业大学校基金(HIT2 0 0 0 .35 )资助课题 |
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| 摘 要： | 在理论上分析了受激布里渊散射相位共轭效应和阈值效应对后向受激布里渊散射光束发散角的影响。在实验上，用受激布里渊散射相位共轭镜（SBS PCM）代替普通反射镜构成Nd:YAG激光器的偏振抽取腔，补偿了激活介质和光学元件造成的波前畸变，压缩了发散角，改善了光束质量。研究了抽运能量、透镜焦距等因素对受激布里渊散射偏振抽取腔输出光光束质量的影响。
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| 关 键 词： | 偏振抽取腔 光束质量 受激布里渊散射 相位共轭 发散角 M^2值 激光器 |
| 收稿时间： | 2001/9/24 |
Improvement of Beam Quality of Polarex Cavity with SBS |
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| Wang Qi\ Yu Xin,Wang Yuezhu,Ju Youlun,Chen Deying,Jia Yongwei.Improvement of Beam Quality of Polarex Cavity with SBS[J].Acta Optica Sinica,2002,22(10):255-1258. |
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| Authors: | Wang Qi\ Yu Xin Wang Yuezhu Ju Youlun Chen Deying Jia Yongwei |
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| Abstract: | The phase conjugation effect and the threshold effect of stimulated Brillouin scattering (SBS) on the divergence angles of back SBS were discussed in the theory. In the experiment, the active medium and wave front aberration generated by optic component were compensated, the divergence angles were compressed, and the beam quality was improved by using the SBS PCM to replace the ordinary reflector in the Nd∶YAG polarex. The pumping energy, lens focal length affecting the beam quality of the SBS polarex were studied. |
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| Keywords: | stimulated Brillouin scattering phase conjugation divergence angles M 2 |
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