Q-switched Zr-EDF laser using single-walled CNT/PEO polymer composite as a saturable absorber

Ahmad, Harith and Zulkifli, Ahmad Zarif and Thambiratnam, Kavintheran and Harun, Sulaiman Wadi (2013) Q-switched Zr-EDF laser using single-walled CNT/PEO polymer composite as a saturable absorber. Optical Materials, 35 (3). pp. 347-352. ISSN 0925-3467, DOI https://doi.org/10.1016/j.optmat.2012.09.005.

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Official URL: http://www.sciencedirect.com/science/article/pii/S...


In this work, we propose and demonstrate a compact, Zirconia–Erbium Doped Fiber (Zr-EDF), a new type of fiber with zirconia dopants added to the silica glass host to significantly increase erbium ion concentrations in the glass matrix. Q-switched behavior is obtained by using a Single-Walled Carbon Nanotube/Polyethylene Oxide composite sandwiched between two fiber ferrules as a saturable absorber. The Zr-EDF fiber laser has a nearly flat amplified spontaneous emission spectrum from 1545 to 1565 nm, unlike conventional erbium doped fibers. The pulse train generated has a maximum repetition rate and pulse width of 14.20 kHz and 8.6 μs respectively. The highest average output power of the system is 270.0 μW, with a corresponding pulse energy of 19.02 nJ. The proposed system is compact, cost-effective and rugged and has applications in range-finding, medicine and in industry.

Item Type: Article
Uncontrolled Keywords: Zirconia–Erbium Doped Fiber; Single-Walled Carbon Nanotube; Saturable absorber
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 29 Oct 2015 06:07
Last Modified: 20 Dec 2019 07:14
URI: http://eprints.um.edu.my/id/eprint/14379

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