In-fiber Fabry-Perot interferometer for strain and magnetic field sensing

被引：92
作者：
Costa, Greice K. B. [1 ,2 ]
Gouvea, Paula M. P. [3 ]
Soares, Larissa M. B. [1 ]
Pereira, Joao M. B. [1 ]
Favero, Fernando [4 ]
Braga, Arthur M. B. [3 ]
Palffy-Muhoray, Peter [5 ]
Bruno, Antonio C. [1 ]
Carvalho, Isabel C. S. [1 ]
机构：
[1] Pontificia Univ Catolica Rio de Janeiro PUC RIO, Dept Phys, Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Photon & Instr Lab Elect Engn, Rio De Janeiro, Brazil
[3] Pontificia Univ Catolica Rio de Janeiro PUC RIO, Dept Mech Engn, Rio De Janeiro, Brazil
[4] Fibercore Ltd, Fibercore House,Southampton Sci Pk, Southampton, NY USA
[5] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 13期
基金：
美国国家科学基金会;
关键词：
PHOTONIC CRYSTAL FIBER; BRAGG GRATING SENSORS; HIGH-PRESSURE; TERFENOL-D; TEMPERATURE; SENSITIVITY; CAVITY; TUBE;
D O I：
10.1364/OE.24.014690
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper we discuss the results obtained with an in-fiber Fabry-Perot interferometer (FPI) used in strain and magnetic field (or force) sensing. The intrinsic FPI was constructed by splicing a small section of a capillary optical fiber between two pieces of standard telecommunication fiber. The sensor was built by attaching the FPI to a magnetostrictive alloy in one configuration and also by attaching the FPI to a small magnet in another. Our sensors were found to be over 4 times more sensitive to magnetic fields and around 10 times less sensitive to temperature when compared to sensors constructed with Fiber Bragg Grating (FBG). (C) 2016 Optical Society of America
引用
收藏
页码：14690 / 14696
页数：7
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