A Highly Sensitive Fiber Optic Sensor Based on Two-Core Fiber for Refractive Index Measurement

被引：27
|
作者：
Rafael Guzman-Sepulveda, Jose [1 ]
Guzman-Cabrera, Rafael [2 ]
Torres-Cisneros, Miguel [2 ]
Javier Sanchez-Mondragon, Jose [3 ]
Alberto May-Arrioja, Daniel [1 ]
机构：
[1] Univ Autonoma Tamaulipas, Dept Elect Engn, UAM Reynosa Rodhe, Fiber & Integrated Opt Lab, Reynosa 88779, Tamaulipas, Mexico
[2] Univ Guanajuato, DICIS, NanoBioPhoton Grp, Guanajuato 368850, Mexico
[3] INAOE, Opt Dept, Photon & Opt Phys Lab, Puebla 72000, Mexico
来源：
SENSORS | 2013年 / 13卷 / 10期
关键词：
fiber optic sensor; refractive index sensor; two-core fiber; PHOTONIC CRYSTAL FIBER; MICHELSON INTERFEROMETER; WAVE-GUIDES; GRATINGS;
D O I：
10.3390/s131014200
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A simple and compact fiber optic sensor based on a two-core fiber is demonstrated for high-performance measurements of refractive indices (RI) of liquids. In order to demonstrate the suitability of the proposed sensor to perform high-sensitivity sensing in a variety of applications, the sensor has been used to measure the RI of binary liquid mixtures. Such measurements can accurately determine the salinity of salt water solutions, and detect the water content of adulterated alcoholic beverages. The largest sensitivity of the RI sensor that has been experimentally demonstrated is 3,119 nm per Refractive Index Units (RIU) for the RI range from 1.3160 to 1.3943. On the other hand, our results suggest that the sensitivity can be enhanced up to 3485.67 nm/RIU approximately for the same RI range.
引用
收藏
页码：14200 / 14213
页数：14
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