Low-cost optical fiber refractive-index sensor based on core diameter mismatch

被引：131
|
作者：
Villatoro, J [1 ]
Monzón-Hernández, D [1 ]
机构：
[1] Ctr Invest Opt AC, Leon 37150, GTO, Mexico
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2006年 / 24卷 / 03期
关键词：
core diameter mismatch; optical fiber sensors; refractive-index measurement; temperature sensor;
D O I：
10.1109/JLT.2005.863246
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A simple, compact, and low-cost optical fiber refractive-index (RI) sensor is reported. It consists of a multimode fiber in which a short section of standard single-mode fiber (SMF) is inserted. Owing to the core diameter mismatch, the cladding of the SMF guides light. This makes the device sensitive to the external RI. The maximum resolution of the sensor is about 7 x 10(-5). The fabrication of the sensor only requires cleaving and fusion splicing; moreover, the device can operate at different wavelengths, which makes it attractive for diverse applications.
引用
收藏
页码：1409 / 1413
页数：5
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