Micro-Ball Lensed Fiber-Based Glucose Sensor

Harun, Sulaiman Wadi and Jasim, A.A. and Rahman, H.A. and Muhammad, M.Z. and Ahmad, Harith (2013) Micro-Ball Lensed Fiber-Based Glucose Sensor. IEEE Sensors Journal, 13 (1). pp. 348-350. ISSN 1530-437X

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Abstract

The compact micro-ball lens structure fabricated at the cleaved tip of a microfiber coupler (MFC) is proposed and demonstrated for sensing various glucose concentrations in deionized water. The MFC was made by fusing and tapering two optical fibers using a flame brushing technique. It was then cleaved at the center of the minimum waist region to form a ball lens at the tip by an arcing technique using a fusion splicing machine. The proposed glucose sensor uses the micro-ball lensed fiber as a probe and a mirror as a target. The working mechanism of this device is based on the observed reduction in the peak power of the sensor wavelength spectrum as the concentration of glucose is increased. For a concentration change from 0 to 12 volume%, the ouput intensity of the sensor decreases linearly from -57.4 to -60.5 dBm with a sensitivity of 0.26 dB/% and a linearity of more than 99%.

Item Type: Article
Uncontrolled Keywords: Ball-lensed microfiber; Glucose sensor; Tapered fiber
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Oct 2015 04:09
Last Modified: 09 Oct 2018 05:57
URI: http://eprints.um.edu.my/id/eprint/14363

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