铌酸锂双面金属包覆波导电压传感特性

J4 ›› 2011, Vol. 28 ›› Issue (2): 202-205.

• 第二届全国光学青年学术论坛论文选登 • 上一篇下一篇

铌酸锂双面金属包覆波导电压传感特性

袁文^1,2,桑明煌², 陈险峰¹, 肖平平³, 曹庄琪¹, 郭琴²

1 上海交通大学物理系，上海 200240；
2 江西师范大学物理系，江西南昌 330022；
3 宜春学院物理科学与工程技术学院, 江西宜春 33600

出版日期:2011-03-28 发布日期:2011-03-03
通讯作者: 曹庄琪(1945- )，男，上海，教授，从事导波光学、光电子器件与量子光学研究. E-mail:zqcao@sjtu.edu.cn
作者简介:袁文(1972- )，男，江西，博士生，从事导波光电子器件研究. E-mail：yuanwen@sjtu.edu.cn
基金资助:
国家自然科学基金资助项目(60677029，10874121，10474093) 、上海交通大学区域光纤通信网与新型光通信系统国家重点实验室开放项目(2010年) 、江西省自然科学基金资助项目(2009GZ W0006)

Characteristics of LiNbO3 waveguide voltage sensor based on symmetrical metal-cladding optical waveguide

YUAN Wen^1,2, SANG Ming-huang², CHEN Xian-feng¹, XIAO Ping-ping³ ,CAO Zhuang-qi¹, GUO Qin²

1 Department of Physics, Shanghai Jiaotong University, Shanghai 200240,China;
2 Department of Physics, Jiangxi Normal University, Nanchang 330022,China;
3 School of Physics Science and Engineering Technology; Yichun University; Yichun 336000, China

Published:2011-03-28 Online:2011-03-03

摘要/Abstract

摘要：

设计了一种利用铌酸锂作为波导基片的双面金属包覆平板光波导，利用波导中超高阶导模高敏感特性制成了一种反射型光学电压传感器。入射激光束采用小角度入射，当光波导处于导模共振状态时，选择一个恰当的工作点，再通过两金属电极对该器件施加直流电压，通过检测反射光强，获得相应的电压值变化。实验测量中所用的电压范围是-800～800V, 得到的线性度值为0.995，波导反射光的反射率变化灵敏度为0.2V-1，实验表明这种电压传感器具有较好的线性和灵敏度，该新型电压传感器具有结构与制作简单、调节方便和成本低廉等优点。

关键词: 导波光学, 双面金属波导, 铌酸锂, 电压传感

Abstract:

A new type of voltage sensor employing a symmetrical metal-cladding optical waveguide structure is proposed which utilized the sensitive property of ultrahigh-order modes of the metal-cladding optical waveguide. The voltage change can be determined by measuring the reflected light intensity when a direct voltage is applied to two electrodes to modulate the reflected light intensity through the refractive index change of LiNbO3. The measurement range of voltage is from 800V to 800V with linearity is 0.995. The sensitivity coefficient of reflectivity light intensity is about 0.2V-1. The results show that the voltage sensor has the good linearity and the high voltage sensitivity. And it has advantages of easy operating and cheap building up in measurement.

Key words: waveguide optics, double metal-cladding optical waveguide, LiNbO3, voltage sensor

中图分类号:

TN253

袁文,桑明煌, 陈险峰, 肖平平, 曹庄琪, 郭琴. 铌酸锂双面金属包覆波导电压传感特性[J]. J4, 2011, 28(2): 202-205.

YUAN Wen, SANG Ming-huang, CHEN Xian-feng, XIAO Ping-ping . Characteristics of LiNbO3 waveguide voltage sensor based on symmetrical metal-cladding optical waveguide[J]. J4, 2011, 28(2): 202-205.

参考文献

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铌酸锂双面金属包覆波导电压传感特性

Characteristics of LiNbO3 waveguide voltage sensor based on symmetrical metal-cladding optical waveguide

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