Ahmad, Harith and Nizamani, Bilal and Samion, Muhamad Zharif and Yusoff, Nukman and Ismail, Mohammad Faizal. (2023) Antimonene-based saturable absorber for a soliton mode-locked and Q-switched fiber laser in the 2 μm wavelength region. Chinese Physics B, 32 (6). ISSN 1674-1056, DOI https://doi.org/10.1088/1674-1056/ac891f.
Full text not available from this repository.Abstract
We demonstrate antimonene as a saturable absorber (SA) to generate an ultrafast mode-locked and Q-switched laser in the 2 mu m wavelength region. The two antimonene-based SAs were prepared and inserted separately in a thulium-holmium-doped fiber laser to produce the pulsed laser. Antimonene was coated onto a tapered fiber to generate soliton mode-locked pulses and used in thin-film form for the generation of Q-switched pulses. The mode-locking was stable within a pump power of 267 mW-511 mW, and the laser operated at a central wavelength of 1897.4 nm. The mode-locked laser had a pulse width of 1.3 ps and a repetition rate of 12.6 MHz, with a signal-to-noise ratio of 64 dB. Q-switched laser operation was stable at a wavelength of 1890.1 nm within a pump power of 312 mW-381 mW. With the increase in pump power from 312 mW to 381 mW, the repetition rate increased to a maximum of 56.63 kHz and the pulse width decreased to a minimum value of 2.85 mu s. Wide-range tunability of the Q-switched laser was also realized within the wavelength range of 1882 nm-1936 nm.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Malaysia [Grant no. PRC-2022], Universiti Malaya [Grant no. MGO23-2022, RU005-2021] |
| Uncontrolled Keywords: | Mode-locking; Q-switched fiber laser; Optical saturable absorber |
| Subjects: | 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: | 20 Oct 2025 07:38 |
| Last Modified: | 20 Oct 2025 07:38 |
| URI: | http://eprints.um.edu.my/id/eprint/48247 |
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