Compact three segmented multimode fibre modal interferometer for high sensitivity refractive-index measurement

被引：87
作者：
Jung, Y. [1 ]
Kim, Soan [1 ]
Lee, D. [1 ]
Oh, K. [1 ]
机构：
[1] Gwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2006年 / 17卷 / 05期
关键词：
fibre optic sensors; refractive index sensor; coreless silica fibre; multimode interference; evanescent wave; chemical sensor; biosensor;
D O I：
10.1088/0957-0233/17/5/S32
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We experimentally demonstrate a new compact surrounding refractive-index sensor using a MMF-CSF-MMF (MCM) structure. The evanescent waves in the coreless silica fibre (CSF) region can directly interact with the surrounding medium. Due to its distinctive resonant spectral feature, the MCM sensor showed a high sensitivity of 4.37 x 10(-4) for a refractive index range of 1.30 to 1.44, suggesting that the proposed device may be suitable for a wide range of biomedical and chemical sensor applications.
引用
收藏
页码：1129 / 1133
页数：5
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