Simultaneous measurement of refractive index and temperature based on a long period fiber grating inscribed in a photonic crystal fiber with an electric-arc discharge

被引：13

作者：

Du, Chao ^{[1
]}

Wang, Qi ^{[1
]}

Hu, Sheng ^{[1
]}

Zhao, Yong ^{[1
]}

机构：

[1] Northeastern Univ, Coll Informat Sci & Engn, POB 127, Shenyang 110819, Liaoning, Peoples R China

来源：

INSTRUMENTATION SCIENCE & TECHNOLOGY | 2019年 / 47卷 / 02期

关键词：

Long period fiber grating; photonic crystal fiber; refractive index and temperature; simultaneous measurement; SENSITIVITY; SENSOR;

D O I：

10.1080/10739149.2018.1508033

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel fiber sensor composed by two single mode fibers and long period fiber grating based on a photonic crystal fiber prepared by periodic discharge heating has been experimentally investigated to measure refractive index and temperature. A Mach-Zehnder interferometer was formed due to the presence of two fusion spliced collapsed regions in the photonic crystal fiber. The resonance dip and interference pattern were differently influenced by the ambient disturbance, so the dual-parameters were simultaneously measured by analyzing the characteristics of transmission spectrum. After the experimental measurements, refractive index and temperature sensitivities of 117.28 nm/RIU and -86.29 pm/degrees C were realized. Therefore, the reported sensor with advantages of easy fabrication, simple structure, and small size has the potential for simultaneous refractive index and temperature measurements involving biochemical sensing applications.

引用

页码：185 / 194

页数：10

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