Low-cost spectral tunable microfibre knot resonator

Lim, Kok Sing and Harun, Sulaiman Wadi and Damanhuri, Siti Sarah Ahmad and Jasim, Ali Abdulhadi and Ku, H.H. and Ahmad, Harith (2011) Low-cost spectral tunable microfibre knot resonator. IET Optoelectronics, 5 (6). p. 281. ISSN 1751-8768, DOI https://doi.org/10.1049/iet-opt.2011.0008.

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Official URL: https://doi.org/10.1049/iet-opt.2011.0008


A low-cost microfibre knot resonator (MKR) is fabricated and the resonant wavelength tunability characteristic of this device is investigated and demonstrated. The spacing of the transmission comb spectrum is unchanged with the temperature, but the resonant wavelength linearly shifts with the temperature change at a slope coefficient of 50.6 pm/°C. The resonant wavelength can also be tuned by applying electric current to the copper wire, which is fastened by the microfibre knot. This is attributed to the thermally induced optical phase shift in the MKR caused by the heat produced by the flow of the electric current over a short transit length. The authors' analysis indicates that the wavelength shift is linearly proportional to square of the current and the maximum tuning slope achieved is 51.3 pm/A2.

Item Type: Article
Uncontrolled Keywords: Electric current measurement; Wire
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: 02 Jan 2019 04:23
Last Modified: 02 Jan 2019 04:23
URI: http://eprints.um.edu.my/id/eprint/19880

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