Ahmad, Harith and Mansor, Nur Hidayah and Ithnahaini, Muhammad Umar Mustaqim and Samion, Muhamad Zharif and Yusoff, Norazriena and Reduan, Siti Aisyah and Yasin, Moh (2023) Generation of high-power Q-switched pulses based on arc-shaped fiber and tapered fiber with Sb2Te3 in erbium/ytterbium doped fiber laser. Infrared Physics & Technology, 129. ISSN 1350-4495, DOI https://doi.org/10.1016/j.infrared.2023.104581.
Full text not available from this repository.Abstract
This study illustrates the capability of antimony telluride (Sb2Te3) utilized as a saturable absorber (SA) for generating high-power Q-switching in the 1.5-mu m region. First, the exfoliated Sb2Te3 solution was fabricated using the liquid phase exfoliation (LPE) technique and integrated onto a D-shaped and tapered fiber, respectively. Then, the SA was inserted into the erbium-ytterbium-doped fiber laser (EYDFL) cavity. For the arc-shaped fiber-based SA, the passive Q-switched pulses were obtained at 1.34 W threshold pump power, whereas the tapered fiber-based SA has a threshold of 0.4 W. As a result, the highest average Q-switched optical power generated by Sb2Te3-coated arc-shaped fiber was 140.2 mW with a repetition rate ranging from 35.7 to 91.3 kHz and pulse widths from 2.51 to 1.65 mu s. On the other hand, the tapered fiber coated with Sb2Te3 could only generate a maximum average output power of 21.7 mW. Moreover, this SA generates Q-switched pulses with a repetition rate ranging from 5.76 kHz to 39.2 kHz and a pulse width from 5.14 to 16.34 mu s. This indicates that Sb2Te3 can serve its purpose as an SA to produce high-power Q-switched pulses without degradation.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Malaysia [Grant No: PRC-2014], Universiti Malaya [Grant No: RK021-2019, RU005-2021] |
| Uncontrolled Keywords: | Erbium; ytterbium; Arc-shaped fiber; Tapered fiber; Antimony telluride; Q-switching |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 10 Nov 2024 04:47 |
| Last Modified: | 10 Nov 2024 04:47 |
| URI: | http://eprints.um.edu.my/id/eprint/38471 |
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