A quasidistributed fiber optic sensor for solute concentration measurement based on Fresnel reflection

被引：14
|
作者：
Wu, Yi Ting [1 ]
Huang, Xu Guang [1 ]
Su, Hui [1 ]
机构：
[1] S China Normal Univ, Lab Photon Informat Technol, Guangzhou 510006, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 13期
关键词：
D O I：
10.1063/1.2790375
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A quasidistributed fiber sensor for solute concentration measurement based on Fresnel reflection from fiber tips and the interrogation of an arrayed waveguide grating is presented. Thin-film filters are utilized to achieve the possibility of wavelength-division-multiplexing distributed sensing. The experimental results can be fitted to a linear equation very well, with a value of R-2 larger than 0.993. The quasidistributed sensor exhibits a capability for real-time, remote measurement of concentrations with high precision, and offers a solid structure, low cost, and easy implementation. (C) 2007 American Institute of Physics.
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页数：3
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