| 基于Ti扩散铌酸锂偏振分束器的研制 |
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| 引用本文： | 崔建民,冯立辉,吕敏,郭建,孙雨南,崔芳.基于Ti扩散铌酸锂偏振分束器的研制[J].光学技术,2007,33(1):92-94. |
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| 作者姓名： | 崔建民 冯立辉 吕敏 郭建 孙雨南 崔芳 |
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| 作者单位： | 北京理工大学 光电工程系,北京 100081 |
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| 摘 要： | 对定向耦合型偏振分束器的原理进行了分析。设计了一种零间距定向耦合器,在空间上实现TE/TM模式分束;用BPM软件对所设计的器件进行仿真模拟,对于TE/TM模的消光比分别可以达到21.2dB和19.5dB;该器件在X切Y传的LiNbO3晶片上采用Ti扩散技术制作完成。实验样品消光比测试结果TE/TM模分别为11.5dB和19.1dB,对于消光比不够理想的原因进行了初步的分析。
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| 关 键 词： | 定向耦合器 Ti扩散 BPM 耦合模理论 |
| 文章编号： | 1002-1582(2007)01-0092-03 |
| 收稿时间： | 2005/12/9 |
| 修稿时间： | 2005年12月9日 |
Integrated optical TE/TM mode splitter using Ti:LiNbO3 technology |
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| CUI Jian-min,FENG Li-hui,LV Min,GUO Jian,SUN Yu-nan,CUI Fang.Integrated optical TE/TM mode splitter using Ti:LiNbO3 technology[J].Optical Technique,2007,33(1):92-94. |
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| Authors: | CUI Jian-min FENG Li-hui LV Min GUO Jian SUN Yu-nan CUI Fang |
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| Abstract: | The TE/TM mode splitter using directional coupler was proposed.The TE/TM mode polarization was separated by the designed directional coupler with zero spacing in the space,which was simulated by using Rsoft's BPM software.The simulated extinction ratio of TE/TM mode is reached 21.2 dB and 19.5 dB respectively. The Ti diffused technology is adopted to fabricate the device on the X cut Y propagation LiNbO-3 slice.The measured extinction ratio of TE/TM mode is 11.5dB and 19.1dB respectively.The primary reasons are discussed. |
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| Keywords: | directional coupler Ti diffuse BPM theory of coupling mode |
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