Three-parameter optical fiber sensor based on a tilted fiber Bragg grating

被引：73

作者：

Alberto, Nelia J. ^{[1
,2
]}

Marques, Carlos A. ^{[3
]}

Pinto, Joao L. ^{[1
,2
]}

Nogueira, Rogerio N. ^{[3
]}

机构：

[1] Univ Aveiro, Inst Nanoestruturas Nanomodelacao & Nanofabricaca, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal

[3] Inst Telecomunicacoes Polo Aveiro, P-3810193 Aveiro, Portugal

来源：

APPLIED OPTICS | 2010年 / 49卷 / 31期

关键词：

REFRACTIVE-INDEX; TEMPERATURE;

D O I：

10.1364/AO.49.006085

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A three-parameter optical sensor based on a tilted fiber Bragg grating is proposed. Through the monitoring of the wavelength shift of the core mode resonance and the ghost mode resonance, it is possible to discriminate strain and temperature. In addition, the refractive index can be determined by calculating the normalized transmission spectrum area. With the current approach, resolutions of up to 5.7 x 10(-4), 4 mu epsilon, and 3.1 degrees C were achieved, for refractive index, strain, and temperature, respectively. The developed sensor can be an important tool in several areas of engineering, namely, biomedical, biological, and environmental sensing. (C) 2010 Optical Society of America

引用

页码：6085 / 6091

页数：7

共 15 条

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