Fabrication and Characterization of a 2 × 2 Microfiber Knot Resonator Coupler

Jasim, Ali Abdulhadi and Zulkifli, Ahmad Zarif and Muhammad, Munir Zuhdin and Ahmad, Harith and Harun, Sulaiman Wadi (2012) Fabrication and Characterization of a 2 × 2 Microfiber Knot Resonator Coupler. Chinese Physics Letters, 29 (8). 084204. ISSN 0256-307X, DOI https://doi.org/10.1088/0256-307X/29/8/084204.

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Official URL: https://doi.org/10.1088/0256-307X/29/8/084204


A 2 × 2 microfiber knot resonator (MKR) coupler is demonstrated. The hybrid device is obtained by forming a knot within the coupling region of a microfiber coupler with a 50:50 splitting ratio. The microfiber coupler is successfully fabricated by laterally fusing and tapering two optical fibers using a flame-brushing technique. The coupler has an overlapping length of 40 mm with a uniform waist of around 5 μm. With an MKR structure, the coupler produces a resonant response at both output ports. The free spectral range of the output spectrum from both ports is obtained at 0.2 nm at a knot diameter of 260 μm. The resonance extinction ratio of the device varies from 2 to 6 dB while the calculated Q factor and finesse are ∼25646 and 3.3, respectively, at both output ports.

Item Type: Article
Uncontrolled Keywords: Fabrication; Characterization; Microfiber knot resonator coupler
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 07:03
Last Modified: 07 Jan 2019 07:03
URI: http://eprints.um.edu.my/id/eprint/19923

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