Sharbirin, Anir Syazwan and Samion, Muhamad Zharif and Ismail, Mohammad Faizal and Ahmad, Harith (2018) Ultrafast mode-locked dual-wavelength thulium-doped fiber laser using a Mach-Zehnder interferometric filter. Opto-Electronics Review, 26 (4). pp. 312-316. ISSN 1230-3402, DOI https://doi.org/10.1016/j.opelre.2018.10.008.
Full text not available from this repository.Abstract
A simple and robust method to generate a dual-wavelength mode-locked laser using a tunable Mach-Zehnder filter (TMZF) and a single-wall carbon nanotube (SWCNT) based saturable absorber (SA) is proposed and demonstrated. The proposed laser uses a thulium-doped fiber for lasing in the two-micron region and exploits the interferometric spectrum of the TMZF to produce dual peaks with nearly equal magnitude. SWCNT based SA enables mode-locking at a threshold value of 150.4 mW with distinct dual-wavelength peaks at 1919.2 nm and 1963.7 nm. The peaks have a calculated pulse width of 1.8 ps and 1.6 ps, respectively with a repetition rate of 9.1 MHz with a relatively high optical-signal-to-noise ratio value of 59.1 dB. The output is also observed to remain unchanged over time, indicating high stability. The proposed laser has a promising application, particularly in ultrafast gas molecular spectroscopy and sensing.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Malaysia under the grants LRGS (2015) NGOD / UM / KPT and GA 010 – 2014 (ULUNG), University of Malaya under the grant RU 001 - 2017 |
| Uncontrolled Keywords: | Dual-wavelength; Mode-locking; Thulium-doped fiber laser; Mach-Zehnder filter |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 18 Mar 2019 03:11 |
| Last Modified: | 18 Mar 2019 03:11 |
| URI: | http://eprints.um.edu.my/id/eprint/20706 |
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