长耦合区光纤熔锥型温度传感器

上海大学学报(自然科学版)

长耦合区光纤熔锥型温度传感器

向晓婷,姚寿铨

上海大学通信与信息工程学院，上海 200072

收稿日期:2007-02-07 修回日期:1900-01-01 出版日期:2008-04-30 发布日期:2008-04-30
通讯作者: 姚寿铨

A Fused-Tapered Temperature Sensor with Long Coupling Region

XIANG Xiao-ting, YAO Shou-quan

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2007-02-07 Revised:1900-01-01 Online:2008-04-30 Published:2008-04-30
Contact: YAO Shou-quan

摘要/Abstract

摘要： 全光纤温度传感器是超高电压下测量温度的急需器件.用增长光纤耦合区长度的方法使得对温度不很敏感的光纤熔锥型耦合器其分束比对温度变得比较敏感，从而达到对温度传感的目的，由于没有附加敏感材料，其长期重复性和可靠性较好.对不同拉锥长度的耦合器在温度的敏感性和线性度等方面进行了研究，目前实验样品在－40～90℃范围内，输出分光可见度已达到0.7%/℃，并有较好的线性度和重复性.

关键词: 分束比改变率, 耦合长度, 熔锥型耦合器

Abstract: Optic-fiber temperature sensor is an instrument required in high voltage environment. We make the optical coupler more sensitive to temperature by elongating the couple length. Therefore, it can be used to measure temperature. It has good reliability and repeatability since no additional materials are used. This research investigates linearity and sensitivity of couplers with different coupler length. R of the present example in the experiment has reach 0.7% per degree Celsius when the temperature ranges from -40 ℃ to 90 ℃, and it has good linearity and repeatability.

Key words: coupler length, distribute change rate, fused-tapered fiber coupler

中图分类号:

TN253

向晓婷;姚寿铨. 长耦合区光纤熔锥型温度传感器[J]. 上海大学学报(自然科学版).

XIANG Xiao-ting;YAO Shou-quan. A Fused-Tapered Temperature Sensor with Long Coupling Region[J]. Journal of Shanghai University（Natural Science Edition）.