Ahmad, Harith and Sharbirin, Anir Syazwan and Ismail, Mohammad Faizal (2019) 1.8 µm passively Q-switched thulium-doped fiber laser. Optics & Laser Technology, 120. p. 105757. ISSN 0030-3992, DOI https://doi.org/10.1016/j.optlastec.2019.105757.
Full text not available from this repository.Abstract
This work demonstrates a simple and reliable passively Q-switched thulium-doped fiber laser capable of generating an output with a peak wavelength at 1.8 µm. Lasing is realized from the shorter wavelength region of a thulium-doped silica fiber gain medium by suppressing lasing at longer wavelengths in combination with a tunable bandpass filter. The laser is modulated by a single-walled carbon nanotube film saturable absorber. The generated Q-switched laser is capable of achieving a high repetition rate of 67.9 kHz and a narrow pulse width of 1.2 µs. As most work on the 1.6–1.8 µm waveband focuses on continuous-wave and mode-locked lasers, to the best of the author's knowledge, this is the first demonstration of a passively Q-switched thulium-doped fiber laser operating at 1.8 µm with an all-silica fiber setup. The demonstrated laser has potential for various applications including biomedical surgery and polymer-based welding applications. © 2019
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Malaysia for funding this research under the grant LRGS (2015) / NGOD / UM / KPT and GA 010 – 2014 (ULUNG), University of Malaya for funding this research under the grant RU 013-2018 and HiCoE Phase II Funding |
| Uncontrolled Keywords: | Thulium; Q-switched; 1.8 µm; Fiber laser |
| 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: | 19 May 2020 01:14 |
| Last Modified: | 19 May 2020 01:14 |
| URI: | http://eprints.um.edu.my/id/eprint/24322 |
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