Current sensor based on microfiber knot resonator

Lim, Kok Sing and Harun, Sulaiman Wadi and Damanhuri, Siti Sarah Ahmad and Jasim, Ali Abdulhadi and Tio, C.K. and Ahmad, Harith (2011) Current sensor based on microfiber knot resonator. Sensors and Actuators A: Physical, 167 (1). pp. 60-62. ISSN 0924-4247, DOI

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A compact current sensor using a microfiber knot resonator (MKR) is demonstrated. With the assistance of a copper wire that is wrapped by the microfiber knot, resonant wavelength inside the MKR can be tuned by applying electric current to the copper wire. The resonant wavelength change is based on the thermally induced optical phase shift in the MKR due to the heat produced by the flow of electric current over a short transit length. It is shown that the wavelength shift is linearly proportional to the square of the amount of current and the maximum tuning slope of 51.3 pm/A2 is achieved using a newly fabricated MKR.

Item Type: Article
Uncontrolled Keywords: Wavelength tunability; Current sensor; Microfiber knot resonator
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: 31 Dec 2018 10:59
Last Modified: 31 Dec 2018 10:59

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