Publication:
Sensitivity enhancement by diameter reduction in low cutoff wavelength single-mode multimode singlemode (SMS) fiber sensors

Date

2017

Director

Publisher

IEEE
Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena
Versión aceptada / Onetsi den bertsioa

Project identifier

//TEC2016-78047-R
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Abstract

Two different low cutoff wavelength single-mode fibers were used in single-mode multimode single-mode (SMS) configuration with the aim of designing sensors operating at short wavelengths, where optical sources and spectrometers are less expensive than in telecommunications bands. The diameter of the SMS structure was reduced with an etching process based on hydrofluoric acid immersion. The results prove that the devices can operate at wavelength ranges from 600 to 1200 nm and that multiple peaks can be obtained, each one with a different sensitivity that is proportional to the wavelength. Moreover, a fivefold increase in sensitivity to refractive index can be obtained. This high sensitivity indicates the possibility to apply this simple and cost-effective device in other applications such as biosensors or chemical sensors.

Description

Keywords

Optical fiber sensor, Refractometer, Etching, Single-mode multimode single-mode (SMS), No core fiber

Department

Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa eta Elektronikoa

Faculty/School

Degree

Doctorate program

item.page.cita

Goni, J., Del Villar, I., Arregui, F. J., & Matias, I. R. (2017). Sensitivity enhancement by diameter reduction in low cutoff wavelength single-mode multimode singlemode (SMS) fiber sensors. 2017 IEEE SENSORS, 1-3. https://doi.org/10.1109/ICSENS.2017.8234368

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