Simultaneous Measurement of Refractive Index and Temperature Based on a Long-Period Grating Inscribed on a Polarization-Maintaining Fiber

被引：0

作者：

Shen, Changyu ^{[1
]}

Zhong, Chuan ^{[1
]}

Chu, Jinlei ^{[1
]}

Zou, Xin ^{[1
]}

Li, Ke ^{[1
]}

Jin, Yongxing ^{[1
]}

Wang, Jianfeng ^{[1
]}

机构：

[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Zhejiang, Peoples R China

来源：

SENSOR LETTERS | 2012年 / 10卷 / 07期

关键词：

Long-Period Fiber Grating (LPG); Polarization-Maintaining Fiber (PMF); Refractive Index; Temperature; Simultaneous Measurement; SENSITIVITY; SENSOR; STRAIN;

D O I：

10.1166/sl.2012.2481

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Simultaneous measurement of refractive index (RI) and temperature by using a long-period fiber grating inscribed on a polarization-maintaining fiber (PM-LPG) was demonstrated. Two adjacent resonant dips (fast-axis and slow-axis resonant dips) which corresponding to the two principle polarizations along the fast and slow axes of the PM-LPG were shift with the external RI and temperature variation. Based on a PM-LPG, the sensitivities of each resonant dip for RI and temperature were different in magnitude and sign. This PM-LPG based sensor has a capability of simultaneously measurement external refractive index and temperature. The maximum error for refractive index and temperature were 0.001 RIU and 0.1 degrees C over range of 1.35 to 1.47 and 20 to 70 degrees C, respectively.

引用

页码：1485 / 1487

页数：3

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