Embedded pressure sensor based on birefringent photonic crystal fiber

被引：3
|
作者：
Yang, Yuanhong [1 ]
Zhang, Xing [1 ]
Jin, Wei [1 ]
Duan, Weiqian [1 ]
Yang, Mingwei [1 ]
机构：
[1] BeiHang Univ, Dept Optoelecton Engn, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China
来源：
22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷
关键词：
photonic crystal fiber; optical fiber sensor; birefringence; embedded sensor; pressure sensor;
D O I：
10.1117/12.974805
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
An embedded pressure sensor was made by sandwiching a polarization maintaining photonic crystal fiber (PM-PCF) between two polymer foils. The excess birefringence induced by transverse pressure applied along the slow-axis of a PM-PCF was numerically simulated with a finite element method. Experiment was carried out with a Sagnac interferometer with the embedded PM-PCF as part of the Sagnac loop. The output interference fringes were found shift linearly with applied transverse pressure with a wavelength to pressure sensitivity of 1.764 nm/MPa, The measurement precision of 0.2%, and a dynamic range of 2.5 MPa were achieved.
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页数：4
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