Thermal response of chalcogenide microsphere resonators
Document Type
Article
Publication Date
1-1-2012
Abstract
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.
Keywords
Chalcogenide, Microsphere resonator, Temperature sensor
Divisions
fac_eng,PHYSICS
Publication Title
Quantum Electronics
Volume
42
Issue
5
Publisher
Kvantovaya Elektronika and Turpion Ltd