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
收藏
页码：1485 / 1487
页数：3
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