Thermal response of chalcogenide microsphere resonators

Ahmad, Harith and Aryanfar, Iman and Lim, Kok Sing and Chong, Wu Yi and Harun, Sulaiman Wadi (2012) Thermal response of chalcogenide microsphere resonators. Quantum Electronics, 42 (5). pp. 462-464. ISSN 1063-7818, DOI

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A chalcogenide microsphere resonator (CMR) used for temperature sensing is proposed and demonstrated. The CMR is fabricated using a simple technique of heating chalcogenide glass and allowing the molten glass to form a microsphere on the waist of a tapered silica fibre. The thermal responses of the CMR is investigated and compared to that of a single-mode-fibre (SMF) based microsphere resonator. It is observed that the CMR sensitivity to ambient temperature changes is 8 times higher than that of the SMF-based microsphere resonator. Heating the chalcogenide microsphere with a laser beam periodically turned on and off shows periodic shifts in the transmission spectrum of the resonator. By injecting an intensity-modulated cw signal through the resonator a thermal relaxation time of 55 ms is estimated.

Item Type: Article
Uncontrolled Keywords: Chalcogenide; Microsphere resonator; Temperature sensor
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Jan 2019 06:14
Last Modified: 07 Jan 2019 06:14

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