Dumbbell shaped inline Mach-Zehnder interferometer for glucose detection

Lokman, A. and Arof, Hamzah and Harun, Sulaiman Wadi (2015) Dumbbell shaped inline Mach-Zehnder interferometer for glucose detection. Measurement, 59. pp. 167-170. ISSN 0263-2241

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Abstract

A simple inline Mach Zehnder Interferometer (MZI) with a dumbbell-shaped structure is developed for measuring glucose concentration in distilled water. The MZI is fabricated using an arcing function of a fusion splicer. The sensor consists of two bulges separated by a tapered waist. The MZI generates a good reflected interference spectrum where the dip wavelength is red-shifted with the increase of glucose concentration. This is due to the increase of the surrounding refractive index, which reduces the phase difference between the core and cladding modes. As the glucose concentration increases from 0 to 12, the dip wavelength increases from 1554.419 to 1554.939 nm in a quadratic manner with the coefficient of determination of 0.9818. It is also found that the sensor has a sensitivity of 0.04 nm/ with a linearity of 96.7. The limit of detection is 4.5. This preliminary result shows that the proposed probe can be used as a sensor to detect glucose concentration in distilled water. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type: Article
Additional Information: Au8py Times Cited:0 Cited References Count:19
Uncontrolled Keywords: Inline mach zehnder interferometer (mzi), fiber sensor, dumbbell-shape structure, refractive index, glucose, simultaneous refractive-index, mode fiber tapers, temperature-measurement, high-sensitivity, optical-fiber, sensors,
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 29 Jul 2015 03:16
Last Modified: 09 Oct 2018 04:05
URI: http://eprints.um.edu.my/id/eprint/13823

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