沿光轴通光的LiNbO3的横向电光调制特性

李克武; 王志斌; 张瑞; 王国梁; 王耀利

doi:10.3788/OPE.20152305.1227

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沿光轴通光的LiNbO₃的横向电光调制特性

现代应用光学 | 更新时间：2020-08-13

- 沿光轴通光的LiNbO₃的横向电光调制特性
- LiNbO₃ transverse electro-optical modulation characteristics for light pass along optical axis
- 光学精密工程 2015年23卷第5期页码：1227-1232
- 作者机构：
  
  1. 中北大学仪器科学与动态测试教育部重点实验室,山西太原,030051
  2. 山西省光电信息与仪器工程技术研究中心,山西太原,030051
- 作者简介：
- 基金信息：
  
  国家国际科技合作专项资助项目(No.2013DFR10150)();国家自然科学基金仪器专项基金资助项目(No.61127015)()
- DOI：10.3788/OPE.20152305.1227
  中图分类号： O436.4;TN761
- 收稿日期：2014-09-24，
  
  修回日期：2014-11-04，
  
  纸质出版日期：2015-05-25
- 稿件说明：
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李克武, 王志斌, 张瑞等. 沿光轴通光的LiNbO3的横向电光调制特性[J]. 光学精密工程, 2015,23(5): 1227-1232

LI Ke-wu, WANG Zhi-bin, ZHANG Rui etc. LiNbO3 transverse electro-optical modulation characteristics for light pass along optical axis[J]. Editorial Office of Optics and Precision Engineering, 2015,23(5): 1227-1232
李克武, 王志斌, 张瑞等. 沿光轴通光的LiNbO3的横向电光调制特性[J]. 光学精密工程, 2015,23(5): 1227-1232 DOI： 10.3788/OPE.20152305.1227.

LI Ke-wu, WANG Zhi-bin, ZHANG Rui etc. LiNbO3 transverse electro-optical modulation characteristics for light pass along optical axis[J]. Editorial Office of Optics and Precision Engineering, 2015,23(5): 1227-1232 DOI： 10.3788/OPE.20152305.1227.

摘要

为了克服现有电光器件的缺陷

选取晶体生长工艺成熟、价格低廉、折射率及电光系数较大的LiNbO

作为电光晶体材料

研究了沿其光轴方向通光的横向电光效应。加工制作了

切、(

xzl

)45切和

切3种不同切型的横向电光调制器

并对他们的调制性能做了实验分析。研究结果表明

沿LiNbO

光轴方向通光的横向电光调制有相同的电光参量

折射率感应主轴的位置与电场方向有关;3种不同切型的横向体电光调制器的零场泄露均很小

静态消光比均优于1 000:1

半波电压实测值与理论值的相对误差不超过1.7%;相同调制电压下

它们的调制深度相同

且调制性能稳定。该项研究可为该类电光调制器件的设计和应用提供参考

拓展它们在光通信和光学测量领域的应用。

Abstract

To overcome the defects of existing electro-optical devices

the LiNbO

with advantages of mature growth process

low prices

large refractive indexes and large electro-optical coefficients was selected as an electro-optical material

and its transverse electro-optical effect for light pass along optical axis was researched. Then

three kinds of transverse electro-optical modulators with

-cut

(

xzl

)45-cut and

-cut were fabricated

and their modulation characteristics were analyzed experimentally.The results indicate that the transverse electro-optical effects that light passes along optical axis have the same electro-optical parameters

and the refractive index induced spindle position is related to the direction of electric field. The three kinds of transverse electro-optical modulators with different cut modes all show the lower zero-field leakages

their static extinction ratios exceed 1 000:1 and the relative error of half-wave voltage between measured value and theoretical value is less than 1.7%. Under the same modulation voltage

these modulators give the same modulation depths and stable modulation characteristics. The research provides references for design of this kind of electro-optical modulation devices

and will expands their applications in optical communications and optical measurement fields.

关键词

Keywords

references

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