Strain-insensitive and high temperature fiber sensor based on a Mach-Zehnder modal interferometer

被引：28
|
作者：
Cao, Zhigang [1 ]
Zhang, Zhao [1 ]
Ji, Xiaochun [1 ]
Shui, Tao [1 ]
Wang, Rui [1 ]
Yin, Chenchen [1 ]
Zhen, Shenglai [1 ]
Lu, Liang [1 ]
Yu, Benli [1 ]
机构：
[1] Anhui Univ, Minist Educ, Key Lab Optoelect Informat Acquisit & Manipulat, Hefei 230601, Peoples R China
来源：
OPTICAL FIBER TECHNOLOGY | 2014年 / 20卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Fiber sensor; Modal interferometer; High temperature; Strain-insensitive; SENSITIVITY; GRATINGS;
D O I：
10.1016/j.yofte.2013.11.003
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a strain insensitive high temperature fiber sensor based on the modal interferometer is proposed. It is composed of a piece of small-core photosensitive fiber (SCPSF) which is spliced between two pieces of single mode fiber (SMF). Compared to other high temperature fiber sensor based on the modal interferometer, the sensor owns the highest temperature sensitivity of 106.64 pm/degrees C from 200 degrees C to 1000 degrees C. The temperature to strain cross sensitivity of the sensor is low and only 0.00675 degrees C/mu epsilon. The reasons for realizing the high temperature sensitivity is also discussed. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码：24 / 27
页数：4
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