| 高斯反射率方形平凹腔激光模场的有限元分析 |
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| 引用本文： | 凌东雄,李俊昌,等.高斯反射率方形平凹腔激光模场的有限元分析[J].光电子．激光,2002,13(6):617-621. |
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| 作者姓名： | 凌东雄 李俊昌 |
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| 作者单位： | 昆明理工大学激光应用研究所,云南,昆明,650093 |
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| 摘 要： | 利用柯林斯公式和边界有限元方法，将方形球面镜腔的衍射积分方程转化为矩阵方程，并对高斯反射率方形平凹腔的模场分布进行了数值计算。研究结果表明，高斯反射率方形平凹腔具有较好的选模性能，可以应用于高功率激光器以获得高质量的激光光束。
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| 关 键 词： | 激光模场 高斯反射率方形平凹腔 柯林斯公式 边界有限元法 光束质量 |
| 文章编号： | 1005-0086(2002)06-0617-05 |
| 修稿时间： | 2001年11月16 |
The Boundary Finite-element Analysis of Mode-fields of the Square Plano-concave Resonator with a Gaussian-reflectivity Mirror |
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| LING Dong xiong,LI Jun chang,GUAN Yi hong.The Boundary Finite-element Analysis of Mode-fields of the Square Plano-concave Resonator with a Gaussian-reflectivity Mirror[J].Journal of Optoelectronics·laser,2002,13(6):617-621. |
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| Authors: | LING Dong xiong LI Jun chang GUAN Yi hong |
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| Abstract: | In this paper,by means of the Collins formula and boundary finite element method,diffraction integral equation of the square resonator with spherical mirrors has been transformed to the finite order matrix equation,and mode fields of the square plano concave resonator with a Gaussian reflectivity mirror have been calculated.As a result of numerical calculation,the square plano concave resonator with a Gaussian reflectivity mirror has good choosing capability for transverse modes,which can be applied in high power lasers to acquire good quality of laser beams. |
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| Keywords: | Square plano concave with a gaussian reflectivity mirror Matrix optics Collins formula Boundary finite element method |
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