Ahmad, Harith and Albaqawi, Hissah Saedoon and Yusoff, Norazriena and Reduan, Siti Aisyah and Chong, Wu Yi (2020) Reduced Graphene Oxide-Silver Nanoparticles for Optical Pulse Generation in Ytterbium- and Erbium-Doped Fiber Lasers. Scientific Reports, 10 (1). p. 9408. ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-020-66253-w.
Full text not available from this repository.Abstract
This work has demonstrated the potential of a reduced graphene oxide silver/polyvinyl alcohol (rGO-Ag/PVA) film as a saturable absorber (SA) in ytterbium and erbium based Q-switched optical fiber lasers. The facile hydrothermal method was used to synthesize the nanocomposite between rGO and Ag nanoparticles. This was followed by a simple solution method to form the rGO-Ag film using PVA as the host polymer. From nonlinear absorption characterization, the rGO-Ag/PVA SA was determined to have a modulation depth of 30%, a nonsaturable loss of 70%, and a saturable intensity of 0.63 kW/cm2. Stable self-starting Q-switched pulses were obtained at the threshold pump power of 72.76 mW and 18.63 mW in the ytterbium-doped (YDFL) and erbium-doped fiber laser (EDFL) cavities respectively. The center operating wavelengths were observed at 1044.4 nm and 1560 nm for the two cavities. The shortest pulse width and maximum repetition rate of the YDFL and EDFL were 1.10 µs and 62.10 kHz and 1.38 µs and 76.63 kHz respectively. This work has demonstrated that the rGO-Ag/PVA film is suitable as an SA for pulse generation in the 1.0 and 1.5 μm regions and would have many potential photonics applications. © 2020, The Author(s).
| Item Type: | Article |
|---|---|
| Funders: | University of Malaya [Grant Number BKS002–2019 and RU 011–2019], Ministry of Higher Education, Malaysia [Grant Number HiCoE Phase II Funding] |
| Uncontrolled Keywords: | Saturable Absorbers; Erbium-Doped Fiber; Mode-locked Fiber Lasers |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Aug 2020 03:56 |
| Last Modified: | 04 Aug 2020 03:56 |
| URI: | http://eprints.um.edu.my/id/eprint/25220 |
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