Refractive index sensor based on measuring the transmission power of tilted fiber Bragg grating

被引：73
|
作者：
Miao, Yin-ping [1 ]
Liu, Bo [1 ]
Zhao, Qi-da [1 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
来源：
OPTICAL FIBER TECHNOLOGY | 2009年 / 15卷 / 03期
基金：
国家高技术研究发展计划(863计划);
关键词：
Optical fiber sensing; Refractive index sensor; Transmission power; Tilted fiber Bragg grating; MULTIMODE-FIBER; OPTICAL-FIBER; SINGLE-MODE; TEMPERATURE; TAPER;
D O I：
10.1016/j.yofte.2008.11.002
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：
A low-cost, compact and practical method to measure the surrounding refractive index (SRI) is proposed by measuring the transmission power of the tilted fiber Bragg grating (TFBG). The transmission power of the TFBG is detected when the SRI varies from 1.3723 to 1.4532; the power decreases monotonously from -2.14 dBm to -3.26 dBm. Under this condition, the resolution of the refractive index of TFBG is predicted to be 10(-4) and the resolution of the concentration of the solution is as slight as 0.01%. Considering its simple configuration and high stability, this way is potential to monitor physical, chemical and biological parameters in the natural environments. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码：233 / 236
页数：4
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