A macrobending singlemode fiber refractive index sensor for low refractive index liquids
A macrobending singlemode fiber refractive index sensor for low refractive index liquids
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DOI：
10.4302/plp.2010.2.05
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发表时间：
2010-01-01
影响因子：
0.6
通讯作者：
Farrell, Gerald
中科院分区：
文献类型：
--
作者：
Wang, Pengfei;Semenova, Yuliya;Farrell, Gerald
提出并研究了一种结构简单的全光纤折射率传感器。所提出的光纤折射计由裸露高弯曲损耗单模光纤1060XP的全环结构组成，利用倏逝波激励引起的众所周知的回音壁模式（WGM）效应来测量外部介质的折射率。与其他光纤传感器相比，其灵敏度具有竞争力（弯曲直径为 19.3mm 时平均为 725.76nm/RIU），并且具有简单性、低成本和易于制造等优势。
An all-fiber refractive index sensor with a simple configuration is proposed and investigated. The proposed fiber refractometer consists of a full-loop structure of bare high-bend loss singlemode fiber-1060XP, employing the well-known whispering gallery mode (WGM) effect induced by the evanescent wave excitation to measure the refractive index of an external medium. A competitive sensitivity is achieved (average 725.76nm/RIU at a bend diameter of 19.3mm) compared with other fiber-optic sensors, plus benefits resulting from simplicity, low cost and ease of fabrication.