Broadband tuning in a passively Q-switched erbium doped fiber laser (EDFL) via multiwall carbon nanotubes/polyvinyl alcohol (MWCNT/PVA) saturable absorber

Ahmad, Harith and Hassan, S.N.M. and Ahmad, F. and Zulkifli, M.Z. and Harun, Sulaiman Wadi (2016) Broadband tuning in a passively Q-switched erbium doped fiber laser (EDFL) via multiwall carbon nanotubes/polyvinyl alcohol (MWCNT/PVA) saturable absorber. Optics Communications, 365. pp. 54-60. ISSN 0030-4018

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Official URL: http://dx.doi.org/10.1016/j.optcom.2015.12.004

Abstract

An MWCNT/PVA-based Q-switched erbium-doped fiber laser (EDFL) that uses a tunable bandpass filter (TBPF) as the wavelength tuning and filtering mechanism to achieve a broadband tuning range is proposed and demonstrated. The tuning range of the generated Q-switched pulses covered a wide wavelength range of 50 nm, which spanned from 1519 nm to 1569 nm and corresponded to the S- and C-band regions. In addition, the lasing and Q-switching operations had low thresholds of 8.9 mW and 22.4 mW respectively. The highest pulse energy of 52.13 nJ was obtained at an output wavelength of 1569 nm, with a corresponding repetition rate of 26.53 kHz and pulse width of 6.10 µs, at the maximum power of 114.8 mW.

Item Type: Article
Uncontrolled Keywords: MWCNT/PVA; Saturable absorber; Q-switching; Erbium-doped fiber laser; Broad band tuning range
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 11 Oct 2017 01:19
Last Modified: 09 Oct 2018 03:30
URI: http://eprints.um.edu.my/id/eprint/17941

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