ITO Coated Optical Fiber Refractometers Based on Resonances in the Infrared Region

被引：67

作者：

Zamarreno, Carlos R. ^{[1
]}

Hernaez, Miguel ^{[1
]}

Del Villar, Ignacio ^{[1
]}

Matias, Ignacio R. ^{[1
]}

Arregui, Francisco J. ^{[1
]}

机构：

[1] Univ Publ Navarra, Dept Elect & Elect Engn, Pamplona 31006, Spain

来源：

IEEE SENSORS JOURNAL | 2010年 / 10卷 / 02期

关键词：

Indium tin oxide (ITO); infrared spectroscopy; optical fiber sensor; refractometer; resonance; REFRACTIVE-INDEX;

D O I：

10.1109/JSEN.2009.2034628

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：

In this work, it is presented the fabrication of optical fiber refractometers in the infrared region based on the deposition of indium tin oxide (ITO) coatings onto optical fibers core. ITO coatings act as the resonance supporting layer allowing the coupling of light at specific wavelengths from the waveguide to the ITO-coating/external medium region as a function of the refractive index of the external medium. The utilization of ITO coatings allows the fabrication of robust, highly reproducible and easy to implement resonance based refractometers. The results obtained showed an average sensitivity of 3125 nm/refractive index unit, which is comparable to the existing devices based either on resonance or other techniques. The fabricated devices showed fast response and no dependence with the length of the sensitive region.

引用

页码：365 / 366

页数：2

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