Phone-sized whispering-gallery microresonator sensing system
Xiangyi Xu, Xuefeng Jiang, Guangming Zhao, Lan Yang
TL;DR
This paper presents a compact, phone-sized whispering-gallery-mode sensing system integrating multiple components for practical optical sensing applications, demonstrated through thermal sensing experiments.
Contribution
The work introduces a fully integrated, portable WGM sensing system that replaces bulky equipment, enabling practical and accessible optical sensing.
Findings
Successful thermal sensing with the portable system
Elimination of bulky measurement equipment
Potential for new practical sensing applications
Abstract
We develop a compact whispering-gallery-mode (WGM) sensing system by integrating multiple components, including a tunable laser, a temperature controller, a function generator, an oscilloscope, a photodiode detector, and a testing computer, into a phone-sized embedded system. We demonstrate a thermal sensing experiment by using this portable system. Such a system successfully eliminates bulky measurement equipment required for characterizing optical resonators and will open up new avenues for practical sensing applications by using ultra-high Q WGM resonators.
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