| GaAs／GaAlAs定向耦合器型行波调制器：1.设计 |
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| 引用本文： | 杨建义,高桥芳浩.GaAs／GaAlAs定向耦合器型行波调制器：1.设计[J].光学学报,1997,17(5):81-585. |
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| 作者姓名： | 杨建义 高桥芳浩 |
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| 作者单位： | [1]浙江大学信息与电子工程学系 [2]日本东京大学工学部电子工学科 |
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| 基金项目： | 国家自然科学基金,“863”高技术资助项目 |
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| 摘 要： | 从理论上重点分析和研究了器件行波电极的微波特性，在半绝缘ＧａＡｓ衬底上设计了具有ｎ＾＋重掺杂外延层和共平面电极的ＧａＡｓ／ＧａＡｌＡｓ定向耦合器型行波调制器，针对实验中发现的行波电极上微波的高传输损耗问题。分析了起因并提出了器件的改进设计方案，从而设计出可达到３５ＧＨｚ带宽的高速调制效应的光波导调制器。
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| 关 键 词： | GaAlAs 光波导 行波调制器 集成光学 砷化镓 |
| 收稿时间： | 1996/3/26 |
GaAs/GaAlAs Traveling Wave Directional Coupler Optical Modulators: I. Design |
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| Yang Jianyi,Zhou Qiang,Wu Zhiwu,Wu Tongxi,Wang Mingkua.GaAs/GaAlAs Traveling Wave Directional Coupler Optical Modulators: I. Design[J].Acta Optica Sinica,1997,17(5):81-585. |
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| Authors: | Yang Jianyi Zhou Qiang Wu Zhiwu Wu Tongxi Wang Mingkua |
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| Abstract: | The GaAs/GaAlAs traveling wave directional coupler optical modulator on S.I. GaAs substrates with a n + epilayer and the coplanar microstrip electrode are designed based on theoretical analysis and especially the analysis and study of the microwave characteristics of the traveling wave electrodes in the device. Then, the problem of high transmission loss of the microwave in traveling wave electrode, which was found during the experiments, is analyzed and the related modified structure of the traveling wave directional coupler modulator with a 35 GHz bandwidth is designed. |
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| Keywords: | GaAs/GaAlAs optical waveguide modulator integrated optics |
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