Ahmad, Harith and Samion, M.Z. and Muhamad, A. and Sharbirin, A.S. and Ismail, Mohammad Faizal (2016) Passively Q-switched thulium-doped fiber laser with silver-nanoparticle film as the saturable absorber for operation at 2.0 μm. Laser Physics Letters, 13 (12). p. 126201. ISSN 1612-2011, DOI https://doi.org/10.1088/1612-2011/13/12/126201.
Full text not available from this repository.Abstract
In this work, a compact thulium-doped fiber laser with a Q-switched output is proposed and demonstrated. A thulium-doped fiber is used for the laser, with a peak absorption of 200 dB m-1 at 790 nm and a cutoff wavelength of 1350 nm as the primary gain medium, and a silver-based saturable absorber as the pulse generation mechanism. The pulses obtained from the proposed laser have repetition rates from 38.3 kHz up to 56.2 kHz, with a pulse width as low as 4.2 μs and pulse energy as high as 67.3 nJ at a maximum pump power of 228.8 mW. The generated pulses are highly stable, showing no changes or fluctuations over operation for a period of 60 min, and further validated with signal-to-noise ratios of 57.0 dB and 59.5 dB in the optical and frequency domains respectively. The proposed laser has high potential for eye-safe applications in manufacturing and medicine.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education of Malaysia (MOHE): Grant of LRGS(2015)/NGOD/UM/KPT, University of Malaya: Grant of RU010/2016 and ROGS (BR003-2016) |
| Uncontrolled Keywords: | Silver; Saturable absorber; Q-switching; Thulium-doped fiber laser |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 24 Oct 2017 05:27 |
| Last Modified: | 11 Oct 2018 03:12 |
| URI: | http://eprints.um.edu.my/id/eprint/18093 |
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