Ahmad, Harith and Ramli, Rizal and Monajemi, Hadieh and Reduan, Siti Aisyah and Yusoff, Norazriena and Ismail, Mohammad Faizal (2019) Soliton mode-locking in thulium-doped fibre laser by evanescent field interaction with reduced graphene oxide-titanium dioxide saturable absorber. Laser Physics Letters, 16 (7). 075102. ISSN 1612-2011, DOI https://doi.org/10.1088/1612-202X/ab258b.
Full text not available from this repository.Abstract
Soliton mode locking pulse generation in a thulium-doped fibre laser (TDFL) by evanescent wave interaction from a D-shaped fiber coated with rGO-TiO2 nanoparticles is proposed and demonstrated. The rGO-TiO2 nanoparticle coating serves as a saturable absorber (SA), and generates a mode locked pulse with a repetition rate, average output power and pulse width of 9.28 MHz, 11.17 nW and 1.49 ps respectively. The proposed laser has a central lasing wavelength of 1939.4 nm, which is the longest as of yet generated by evanescent wave interaction in a TDFL. An average signal-to-noise ratio of around 50 dB is obtained from the generation pulse, with minimal power and wavelength fluctuations indicating high stability. The proposed laser would have significant applications in various fields, particularly medicine for its operation in the eye-safe region of 2 µm. © 2019 Astro Ltd.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Fibre lasers; Mode-locking; Soliton; Thulium doped fibre |
| 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 02:24 |
| Last Modified: | 19 May 2020 02:24 |
| URI: | http://eprints.um.edu.my/id/eprint/24337 |
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