A curvature sensor using a novel side-leakage photonic crystal fiber based Sagnac interferometer

被引：0

作者：

Lou, Shuqin ^{[1
]}

Sheng, Xinzhi ^{[2
]}

Wang, Liwen ^{[1
]}

Yin, Guolu ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China

来源：

22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷

基金：

中国国家自然科学基金;

关键词：

photonic crystal fiber; side-leakage region; fiber sensor; Sagnac interferometer; curvature; temperature; GRATINGS;

D O I：

10.1117/12.968600

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

A novel side-leakage PCF with high birefringence is designed and fabricated by introducing a linear side-leakage region into both sides of the elliptical Ge-doped core. A curvature sensor using the homemade side-leakage PCF based Sagnac interferometer is proposed and demonstrated experimentally. Experimental result shows that a high bending sensitivity of 10.798nm/m(-1) can be achieved when the linear side-leakage region is in the vertical with the direction of curvature. With the measuring matrix obtained from sensor's sensitivity matrix by measuring the wavelength shifts of two dip in the transmission spectrum, this sensor can also realize simultaneous measurement of curvature and temperature.

引用

页数：4

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