Carbon Nanotube-Deposited Tilted Fiber Bragg Grating for Refractive Index and Temperature Sensing

被引：19

作者：

Jiang, Biqiang ^{[1
,2
]}

Lu, Xin ^{[1
,2
]}

Mao, Dong ^{[1
,2
]}

Wang, Yadong ^{[1
,2
]}

Zhang, Wending ^{[1
,2
]}

Gan, Xuetao ^{[1
,2
]}

Zhao, Jianlin ^{[1
,2
]}

机构：

[1] Northwestern Polytech Univ, Key Lab Space Appl Phys & Chem, Minist Educ, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Shaanxi Key Lab Opt Informat Technol, Sch Sci, Xian 710072, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Tilted fiber Bragg grating; carbon nanotube; refractive index measurement; OPTICAL-FIBER; CLADDING MODES; CORE FIBER; SENSORS; SENSITIVITY; COATINGS;

D O I：

10.1109/LPT.2016.2522512

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 tilted fiber Bragg grating (TFBG) deposited with carbon nanotube (CNT) is proposed to simultaneously measure the surrounding refractive index (SRI) and temperature. Assisted by the interaction between the CNT deposition layer and the TFBG's cladding mode, the increase in SRI could significantly attenuate the coupling intensity of cladding modes, while the resonant wavelengths keep almost unchanged. Therefore, the temperature response of the CNT-deposited TFBG could be further obtained by tracking the shifted resonant wavelength. In addition, the CNT deposition greatly enhances the sensing capability in a low refractive index region of 1 similar to 1.428, presenting great potentials in biochemical sensing.

引用

页码：994 / 997

页数：4

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