Temperature Compensated Strain Sensor Based on Cascaded Sagnac Interferometers and All-Solid Birefringent Hybrid Photonic Crystal Fibers

被引：28

作者：

Gu, Bobo ^{[1
,2
]}

Yuan, Wu ^{[3
]}

He, Sailing ^{[2
]}

Bang, Ole ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Photon Engn, DK-2800 Lyngby, Denmark

[2] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China

[3] Singapore Inst Mfg Technol, Singapore 638075, Singapore

来源：

IEEE SENSORS JOURNAL | 2012年 / 12卷 / 06期

关键词：

Cascaded Sagnac interferometers; hybrid photonic crystal fiber; temperature compensation; LOOP MIRROR; BANDGAP FIBER;

D O I：

10.1109/JSEN.2011.2175725

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 demonstrate a temperature compensated strain sensor with two cascaded Sagnac interferometers, that provide strain sensing and temperature compensation, respectively. The Sagnac interferometers use an all-solid hybrid photonic crystal fiber with stress-induced birefringence. The stress-induced birefringent fiber is known to offer the maximum strain sensitivity, but also to suffer from temperature crosstalk. Our experimental results show that the cascaded Sagnac sensor can suppress the crosstalk to a temperature upto 0.33 mu epsilon/degrees C, while still providing a high strain sensitivity of similar to 25.6 pm/mu e.

引用

页码：1641 / 1646

页数：6

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