REFRACTIVE-INDEX SENSOR BASED ON TILTED FIBER BRAGG GRATING INTERACTING WITH MULTIMODE FIBER

被引：15
|
作者：
Jin, Yongxing [1 ]
Dong, Xinyong [1 ]
Gong, Huaping [1 ]
Shen, Changyu [1 ]
机构：
[1] China Jiliang Univ, Inst Optoelect, Hangzhou 310018, Zhejiang, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2010年 / 52卷 / 06期
关键词：
optical fiber sensors; tilted fiber Bragg gratings; refractive index measurement; OPTICAL-FIBER; REFRACTOMETER; INTERFERENCE; TEMPERATURE;
D O I：
10.1002/mop.25178
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 simple refractive-index fiber sensor based on a tilted Bragg fiber grating (TFBG) interacting with multimode fiber (MMF) is described. The sensor structure is formed by insertion of a small section of MMF between the single-mode fiber and the TFBG. The average reflective potter in the cladding modes of the TFBG reflected a different power as the surrounding refractive index changes, while the power of the reflected Bragg mode keeps unchanged. Therefore, the power of the reflected Bragg mode can be used as a reference to compensate any possible fluctuation of the light source power. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1375-1377, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25178
引用
收藏
页码：1375 / 1377
页数：3
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