| 模扩展结构半导体激光器的有限元分析 |
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| 引用本文： | 王正选,李宏,张颖,黄德修.模扩展结构半导体激光器的有限元分析[J].华中科技大学学报(自然科学版),2001,29(9):72-74. |
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| 作者姓名： | 王正选 李宏 张颖 黄德修 |
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| 作者单位： | 华中科技大学光电子工程系 |
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| 基金项目： | 国家自然科学基金资助项目 (699770 1 1 ) |
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| 摘 要： | 运用近似的标量有限元法对模式扩展的结构进行了分析，结合实际，精确划分了有限元网络，模拟出了模扩展的近场图形，并详细分析了结构内部的能量转换效率及其与单模光纤的耦合效率，找到了一种能够指导半导体激光器、放大器设计的有效工具，结果表明，分析结果与已有的实验结论基本符合，波导区折射率大大不能对模场进行有效限制，太小则使模场转换发生困难。
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| 关 键 词： | 半导体激光器 模扩展结构 有限元法 绝热转换 锥形波导 耦合效率 |
| 文章编号： | 1000-8616(2001)09-0072-03 |
| 修稿时间： | 2000年12月28 |
Analysis on Semiconductor Laser with Expanded Output-mode Structure by the Finite-element Method |
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| Wang Zhengxuan Li Hong Zhang Ying Huang Dexiu Postgraduate, Dept. of Optoelectronic Eng.,HUST,Wuhan ,China..Analysis on Semiconductor Laser with Expanded Output-mode Structure by the Finite-element Method[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(9):72-74. |
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| Authors: | Wang Zhengxuan Li Hong Zhang Ying Huang Dexiu Postgraduate Dept of Optoelectronic Eng HUST Wuhan China |
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| Institution: | Wang Zhengxuan Li Hong Zhang Ying Huang Dexiu Postgraduate, Dept. of Optoelectronic Eng.,HUST,Wuhan 430074,China. |
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| Abstract: | The expanded output mode structure is studied by the approximate scalar finite element method. This method is formulated and the elements are subdivided. The numerical simulation results of this structure show the near field images, the inner power conversion efficiency and the coupling efficiency between the laser and the single mode fiber. A tool available to instruct the design of the semiconductor laser or semiconductor optical amplifier is found. And the results show the analysis is consistent with the experiment. |
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| Keywords: | semiconductor laser expanded output-mode structure finite-element method adiabatic conversion tapered waveguide |
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