Nickel disulfide saturable absorber as Q-switcher in erbium-doped fiber laser cavity

Huda, C. and Harun, Sulaiman Wadi and Jafry, A. A. A. and Kasim, N. and Zaidan, A. H. and Yasin, M. (2021) Nickel disulfide saturable absorber as Q-switcher in erbium-doped fiber laser cavity. Chalcogenide Letters, 18 (3). pp. 149-154. ISSN 1584-8663,

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Q-switched pulse generation has been successfully demonstrated in Erbium doped fiber laser (EDFL) cavity by using Nickel disulfide Poly(vinyl alcohol) (NiS2 PVA) film as a passive saturable absorber (SA). The NiS2 SA was successfully fabricated by uncomplicated and cost-efficient ultrasonic liquid exfoliation and follow by incorporating into polyvinyl alcohol (PVA) polymer to form a NiS2-PVA composite thin film SA. Q-switched pulse operation was obtained at low threshold pump power of 25.6 mW. The Q-switched EDFL operated at 1564.8 nm with repetition rate tunable from 48.1 kHz to 85.5 kHz when the pump power is varied from 25.6 mW to 71.5 mW. The minimum pulse width and highest achieved single pulse energy are 5.85 mu s and 114.7 nJ, respectively at pump power of 71.5 mW. This result shows that the NiS2 has immerse potential for photonic applications.

Item Type: Article
Funders: Airlangga Research Grant, RISTEK/BRIN Indonesia Government, Universiti Malaya (GPF005A-2018), Universiti Teknologi Malaysia (Q.J130000.2654.16J01), Universitas Kanjuruhan Malang
Uncontrolled Keywords: Nickel disulfide; Passive saturable absorber; NiS2; Q-switched fiber laser
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 10 Aug 2022 00:13
Last Modified: 10 Aug 2022 00:13

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