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Si2N2O基体铌酸锂调制器有限元法研究

Research on Lithium Nobate Modulator Based on Si2N2O Substrate by Finite Element Method

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摘要

提出一种新型基于Si2N2O基体的LiNbO3行波调制器,利用有限元方法对该调制器进行数值分析并获得调制器的优化结构尺寸.该新型调制器带宽达到120GHz,半波电压为3.5V,特性阻抗为50.2Ω.结果表明该调制器具有大的调制带宽和良好的阻抗匹配,在未来光通信中具有很好的应用前景.

Abstract

A novel LiNbO3 modulator based on Si2N2O substrate is proposed. Using the finite element method,the proposed modulator has been analyzed. The optimum structure parameters of the novel modulator are obtained. The modulator operates with a 3 dB optical bandwidth of 120 GHz,a half-wave driving voltage of 3.5 V,and characteristic impedance of 50.32Ω. The results show that broad bandwidth and low half-wave voltage can be achieved simultaneously. It is a promising candidate for future ultra-high-speed optical fiber transmission system.

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中图分类号:TN761

所属栏目:波导与集成光学

基金项目:国家自然科学基金(60577023)、中国博士后基金和光电信息技术科学教育部重点实验室开放课题基金资助

收稿日期:2004-10-26

修改稿日期:--

网络出版日期:0001-01-01

作者单位    点击查看

李九生:浙江大学信息学院光及电磁波研究中心,杭州 310027

联系人作者:李九生(jshli@126.com)

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引用该论文

Li Jiusheng. Research on Lithium Nobate Modulator Based on Si2N2O Substrate by Finite Element Method[J]. ACTA PHOTONICA SINICA, 2006, 35(1): 0037

李九生. Si2N2O基体铌酸锂调制器有限元法研究[J]. 光子学报, 2006, 35(1): 0037

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