Study of liquid sealed no-core fiber interferometer for sensing applications

被引：23
|
作者：
Bhardwaj, Vanita [1 ]
Singh, Vinod Kumar [1 ]
机构：
[1] Indian Inst Technol, Indian Sch Mines, Dept Appl Phys, Dhanbad 826004, Jharkhand, India
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2017年 / 254卷
关键词：
Optical fiber temperature sensor; No-core fiber; Single mode fiber; Refractive index sensor; LONG-PERIOD FIBER; HIGH-TEMPERATURE SENSOR; PHOTONIC CRYSTAL FIBER; INTERMODAL INTERFEROMETER; SENSITIVITY; STRAIN; FLUID; TAPER;
D O I：
10.1016/j.sna.2016.12.015
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：
We report an experimental investigation on liquid sealed no-core (NCF) fiber based on modal interferometer and applied for temperature sensing applications. The sensor fabrication was very simple and inexpensive because that requires only a splice section of NCF in the middle of single mode fiber (SMF). After fabrication, the interferometer was packed into a liquid-sealed capillary tube and then the sensing measurements were carried out by detecting wavelength sweeping. An experimental demonstration shows that the fabricated interferometer exhibits a high linear response with sensing range and can be easily controlled by tuning the refractive index of the sealed liquid. The highest temperature sensitivity is found to be 201.17 pm/degrees C. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：95 / 100
页数：6
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