Zinc-oxide nanoparticle-based saturable absorber deposited by simple evaporation technique for Q-switched fiber laser

Syed d Husin, Syarifah Aloyah Syed and Muhammad, Farah Diana and Che Abdullah, Che Azurahanim and Ribut, Siti Huzaimah and Zulkifli, Mohd Zamani and Mahdi, Mohd Adzir (2019) Zinc-oxide nanoparticle-based saturable absorber deposited by simple evaporation technique for Q-switched fiber laser. Chinese Physics B, 28 (8). pp. 1-5. ISSN 1674-1056

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Abstract

A Q-switched erbium-doped fiber laser (EDFL) incorporating zinc-oxide (ZnO) nanoparticles-based saturable absorber (SA) is proposed and demonstrated. To form the SA, the ZnO nanoparticles, which are originally in the powder form, are first dissolved in ethanol and subsequently deposited onto the surface of fiber ferrule by using the adhesion effect with the evaporation technique. By integrating the ZnO nanoparticle-based SA into a laser cavity of an EDFL, a self-started and stable Q-switching is achieved at a low threshold power of 20.24 mW. As the pump power is increased, the pulse repetition rate is tunable from 10.34 kHz to 25.59 kHz while pulse duration decreases from to . Additionally, this Q-switched laser has a maximum energy per pulse of 19.34 nJ and an average output power of 0.46 mW. These results indicate the feasibility and functionality of the ZnO nanoparticles-based SA for Q-switched generation, which offers the flexibility and easy integration of the SA into a ring laser cavity.

Item Type:	Article (Journal)
Additional Information:	8870/74533
Uncontrolled Keywords:	Zinc oxide; Saturable absorber; Q-switched; Fiber laser
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:	19 Dec 2019 15:20
Last Modified:	19 Dec 2019 15:20
URI:	http://irep.iium.edu.my/id/eprint/74533

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