Microfiber Loop Resonator For Formaldehyde Liquid Sensing

Yasin, Mohamad and Hamid, Sana Sulaiman and Harun, Sulaiman Wadi and Jali, Mohd Hafiz and Mohd Yusof, Haziezol Helmi and Md Johari, Md Ashadi and Abdul Rahim, Hazli Rafis (2019) Microfiber Loop Resonator For Formaldehyde Liquid Sensing. Optik - International Journal for Light and Electron Optics, 196. pp. 1-7. ISSN 0030-4026

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Abstract

This work employed the whispering gallery mode (WGM) of microfiber loop resonator (MLR) for formaldehyde (CH2O) liquid sensing application. A significant sensing response to different concentrations of formaldehyde liquid from 0% to 5% was observed due to the surface absorption and changeable refractive index resulting in different light attenuation in the silica microfiber. As the concentration increases, the output power of the MLR decreased linearly from −18.9 dB m to −36.2.dBm with sensitivity increased by a factor of 2.5 as compared to straight microfiber (SmF). As for resolution, the MLR improved by a factor of 3.28 as compared to SmF.

Item Type:	Article
Uncontrolled Keywords:	Formaldehyde, Microfiber loop resonator, Straight microfiber, Whispering gallery mode
Divisions:	Faculty of Electrical Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	04 Aug 2020 12:42
Last Modified:	04 Aug 2020 12:42
URI:	http://eprints.utem.edu.my/id/eprint/24277
Statistic Details:	View Download Statistic

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