Ahmad, Harith and Samion, Muhamad Zharif and Yusoff, Norazriena (2018) Soliton mode-locked thulium-doped fiber laser with cobalt oxide saturable absorber. Optical Fiber Technology, 45. pp. 122-127. ISSN 1068-5200, DOI https://doi.org/10.1016/j.yofte.2018.07.012.
Full text not available from this repository.Abstract
In this work, we propose and demonstrate a mode-locked thulium doped fiber laser (TDFL) with an integrated cobalt oxide (Co3O4) saturable absorber (SA). The SA is fabricated by suspending Co3O4 nanosheets in a polymer film before being secured between two fiber ferules. The laser operates in the anomalous dispersion regime, confirmed by the Kelly sidebands observed in the obtained optical spectrum. Mode-locking operation is obtained at a low threshold pump power of 77.32 mW, with further optimizations made using a polarization controller The laser generates pulses with a repetition rate of 11.36 MHz and a pulse width of 1.39 ps. The generated pulses are highly stable, with a high signal-to-noise ratio of 46.00 dB and minimum power fluctuations indicating a long-term stability. This work demonstrates a simple and a low-cost laser that would have potential applications for operation near the 2.0-µm region, especially for medical applications.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Malaysia under the grant LRGS (2015)/NGOD/UM/KPT, University of Malaya under the grant RU 001–20017 |
| Uncontrolled Keywords: | Mode-locking; Thulium; Cobalt oxide; Pulse fiber laser |
| 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: | 07 Oct 2019 03:40 |
| Last Modified: | 07 Oct 2019 03:40 |
| URI: | http://eprints.um.edu.my/id/eprint/22679 |
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