Aluminum oxide nanoparticles as saturable absorber for C-band passively Q-switched fiber laser

We report on aluminum oxide nanoparticles (Al O NPs) as a saturable absorber (SA) for passively Q-switched erbium-doped fiber laser (EDFL) operating at a wavelength of 1560.6 nm within the C-band region. A thin film of Al O -SA was prepared using polyvinyl alcohol (PVA) as a host polymer. Very stabl...

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Bibliographic Details
Published in:Applied optics. Optical technology and biomedical optics 2017-06, Vol.56 (16), p.4720
Main Authors: Al-Hayali, Sarah Kadhim Mohsin, Mohammed, Dunya Zeki, Khaleel, Wurood Abdulkhaleq, Al-Janabi, Abdul Hadi
Format: Article
Language:English
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Summary:We report on aluminum oxide nanoparticles (Al O NPs) as a saturable absorber (SA) for passively Q-switched erbium-doped fiber laser (EDFL) operating at a wavelength of 1560.6 nm within the C-band region. A thin film of Al O -SA was prepared using polyvinyl alcohol (PVA) as a host polymer. Very stable pulses with a 57.8 KHz repetition rate and 5.6 μs pulse width at a threshold pump power of 158 mW were obtained. A 2.8 μs pulse width, 81 kHz pulse repetition rate, with maximum pulse energy of 56.7 nJ at a diode pump power of 330 mW were recorded. To the best of the authors' knowledge, this is the first time that a Al O -based SA has been used to generate a Q-switched EDFL.
ISSN:2155-3165
DOI:10.1364/AO.56.004720