| 基于Wheeler's Conforming Mapping扩展变换法的聚合物电光调制器特性研究 |
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| 引用本文： | 文玥,张晓霞,黄春阳,沈杰.基于Wheeler's Conforming Mapping扩展变换法的聚合物电光调制器特性研究[J].物理学报,2011,60(10):104223-104223. |
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| 作者姓名： | 文玥 张晓霞 黄春阳 沈杰 |
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| 作者单位： | 电子科技大学光电信息学院,成都 610054 |
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| 基金项目： | 国家高技术研究发展计划(新材料领域)(批准号:2009AA03Z413)资助的课题. |
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| 摘 要： | 基于Wheeler变换模型,提出了一种分析多层介质微波特征参数的方法--Wheeler's Conforming Mapping扩展变换法,并利用该方法得到了微波特征参数与各层介质参数之间的表达式,在此基础上分析了微带电极的微波特性参数. 与准静态有限元法(QS-FEM)相比,Wheeler's Conforming Mapping扩展变换法不仅计算准确而且具有更高的计算效率. 将该方法应用于聚合物电光调制器的特性研究,对传统模型进行改进,通过添加补偿层来调整微波等效折射率和特征阻抗,改善微波与光波有效折射率的失配度,在理论上实现了聚合物电光调制器的速率和阻抗的同时匹配.
关键词：
Wheeler扩展变换法
微带电极
特征参数
等效介电常数
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| 关 键 词： | Wheeler扩展变换法 微带电极 特征参数 等效介电常数 |
| 收稿时间： | 2010-11-15 |
Characteristic study of polymer electro-optic modulator based on extended wheeler's conforming mapping method |
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| Wen Yue,Zhang Xiao-Xi,Huang Chun-Yang and Shen Jie.Characteristic study of polymer electro-optic modulator based on extended wheeler's conforming mapping method[J].Acta Physica Sinica,2011,60(10):104223-104223. |
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| Authors: | Wen Yue Zhang Xiao-Xi Huang Chun-Yang and Shen Jie |
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| Institution: | School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 641005,China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 641005,China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 641005,China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 641005,China |
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| Abstract: | An extended Wheeler's conforming mapping method is proposed to analyze the characteristic parameters of the multilayer based on the simple Wheeler's transformation. The explicit expression between the microwave characteristic parameter and the each layer parameter is obtained. Compared with the results obtained by the quasi-static finite element method (QS-FEM), our results show that the present approach can not only accurately evaluate the characteristic parameters of the multilayer but also have a great computational efficiency. Based on this method, a modified structure of the typical electro-optic modulator is given. The velocity matching and the impedance matching can be achieved simultaneously by adding a compensation layer. |
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| Keywords: | extended Wheeler's transformation microwave electrode characteristic parameter microwave effective index |
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