S-Fiber Probe for Refraction Index Sensing

被引：0
|
作者：
Yang, Xian-hui [1 ]
Yang, Rui [2 ]
Gao, Shuo [1 ]
Gu, Xue-mei [3 ]
Yu, Bo-tao [1 ]
Zhang, Shi-chuan [1 ]
机构：
[1] Bohai Drilling Engn Co Ltd, Well Testing Co, CNPC, Langfang, Hebei, Peoples R China
[2] Bening Aerosp Yilian Sci & Technol Dev Co Ltd, Beijing, Peoples R China
[3] PetroChina Huabei Oilfield Co, Geol Dept Exploitat Factory 1, Renqiu City, Hebei, Peoples R China
来源：
FUZZY SYSTEMS AND DATA MINING III (FSDM 2017) | 2017年 / 299卷
关键词：
fiber tapers; refractive index sensors; fiber optic sensors; SINGLE-MODE FIBER; INTERFEROMETER; SENSOR; GRATINGS; TAPERS;
D O I：
10.3233/978-1-61499-828-0-357
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A refractive index (RI) sensor which based on an S-tapered fiber probe (STFP) with a silver mirror on its end facet is demonstrated. The fiber probe has a compact size of about 1 mm, making it proper for sensing in narrow or limited space. It is stiff to bend due to the short probe structure, leading to avoid the cross-sensitivity of bending. The reflection spectra of the STFPs with different structure length have been analyzed and simulated. A proper structure length will result in narrow dips and peaks, which can be used to enhance the measurement accuracy. Its refractive index sensitivity which is normally in the range of 1.332 similar to 1.387 reaches 268.8 nm/RI unit, which is 9 times higher than that of the existing reflective fiber-taper-based RI sensor. Furthermore, the thermal response experimental results show that the STFP is temperature insensitive.
引用
收藏
页码：357 / 363
页数：7
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