| 二维轴对称-折叠组合腔CO_2激光器近场失调分析 |
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| 引用本文： | 闫廷光,李育德,肖丰霞,刘现魁,高柯,封涛.二维轴对称-折叠组合腔CO_2激光器近场失调分析[J].激光技术,2008,32(4):402-405,444. |
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| 作者姓名： | 闫廷光 李育德 肖丰霞 刘现魁 高柯 封涛 |
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| 作者单位： | 四川大学,电子信息学院,成都,610064 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了研究小角度失调对二维轴对称-折叠组合腔CO2激光器输出光束的近场分布的影响,在利用矩阵理论确定平凹谐振腔和凹-平-凹谐振腔失调后的光轴的基础上,采用光束并和思想,对输出光束进行了理论分析和模拟.取得的数据表明,小角度失调对4cm以内的近场强度影响不大,光强仍具有高斯状分布;对4cm以外的近场强度影响较大,光强分布轮廓发生相应的变形,且随着失调角度变大而变大.研究结果表明,在4cm以内的近场具有实用价值.
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| 关 键 词： | 激光器 轴对称-折叠组合腔 失调 高斯光束 并和 |
| 收稿时间： | 2007/5/8 |
Near-field analysis of misaligned CO_2 laser of two-dimension axisymmetric-fold combination cavity |
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| YAN Ting-guang,LI Yu-de,XIAO Feng-xia,LIU Xian-kui,GAO Ke,FENG Tao.Near-field analysis of misaligned CO_2 laser of two-dimension axisymmetric-fold combination cavity[J].Laser Technology,2008,32(4):402-405,444. |
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| Authors: | YAN Ting-guang LI Yu-de XIAO Feng-xia LIU Xian-kui GAO Ke FENG Tao |
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| Affiliation: | YAN Ting-guang,LI Yu-de,XIAO Feng-xia,LIU Xian-kui,GAO Ke,FENG Tao(School of Electronic , Information Science,Sichuan University,Chengdu 610064,China) |
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| Abstract: | Under the condition of small angle misalignment,the effecton output beam's near-field distribution of CO2 lasers with two-dimensional axisymmetric-fold combination cavity was ascertained after analyzing and simulating beams combination output based on the axis determination of misaligned plano-concave and concave-plano-concave cavity resonator.The results showed that at small angle misalignment,the effect on near-field within 4cm was un-conspicuous and the light intensity was still at Gaussian distribution,... |
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| Keywords: | lasers axisymmetric-fold combination cavity maladjustment Gaussian beam combination |
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