| Mach-Zehnder Interferometer Based on Coupled Dielectric Pillars |
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| 作者姓名： | 郜定山 郝然 周治平 |
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| 作者单位： | [1]Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074 [2]School of Electrical and Computer Engineering, Georgia Institute of Technology, Georgia 30332, USA |
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| 基金项目： | Supported by the National Basic Research Program of China under Grant No. 2006CB708310 and Natural Science Foundation of Hubei Province, China under Grant No. 2006ABD002. |
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| 摘 要： | We propose a Mach-Zehnder interferometer （MZI） based on coupled dielectric pillars. It is composed of single-row pillar coupled waveguide modulating arms and three-row pillar waveguide 3 dB couplers. The slow light property and transmission loss of the single-row pillar modulating arm are optimized by the plane wave expansion method. A short 3dB coupler is designed based on the modes transformation in three-row pillar waveguide. Finite difference time domain simulations prove the validity of this MZI and show that it has low insertion loss of 1.1 dB and high extinction ratio of 〉 12 dB.
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| 关 键 词： | 干涉仪 电介质 电子技术 电子物理 |
| 收稿时间： | 2007-08-13 |
Mach--Zehnder Interferometer Based on Coupled Dielectric Pillars |
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| GAO Ding-Shan,HAO Ran,ZHOU Zhi-Ping.Mach-Zehnder Interferometer Based on Coupled Dielectric Pillars[J].Chinese Physics Letters,2007,24(11):3172-3174. |
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| Authors: | GAO Ding-Shan HAO Ran ZHOU Zhi-Ping |
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| Institution: | Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074School of Electrical and Computer Engineering, Georgia Institute of Technology, Georgia 30332, USA |
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| Abstract: | We propose a Mach--Zehnder interferometer (MZI) based on coupled dielectric pillars. It is composed of single-row pillar coupled waveguide modulating arms and three-row pillar waveguide 3dB couplers. The slow light property and transmission loss of the single-row pillar modulating arm are optimized by the plane wave expansion method. A short 3dB coupler is designed based on the modes transformation in three-row pillar waveguide. Finite difference time domain simulations prove the validity of this MZI and show that it has low insertion loss of <1.1dB and high extinction ratio of >12dB. |
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| Keywords: | 42 70 Qs 42 82 Et |
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