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

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

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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 ms, at the maximum power of 114.8 mW.

Item Type:	Article (Journal)
Uncontrolled Keywords:	MWCNT/PVA, Saturable absorber, Q-switching, Erbium-doped fiber laser, Broad band tuning range
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Dr M Z Zulkifli
Date Deposited:	04 Nov 2020 15:21
Last Modified:	04 Nov 2020 15:21
URI:	http://irep.iium.edu.my/id/eprint/84046

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