1.8 µm passively Q-switched thulium-doped fiber laser
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...
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| Format: | Article |
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Elsevier
2019
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| _version_ | 1796961996164300800 |
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| author | Ahmad, Harith Sharbirin, Anir Syazwan Ismail, Mohammad Faizal |
| author_facet | Ahmad, Harith Sharbirin, Anir Syazwan Ismail, Mohammad Faizal |
| author_sort | Ahmad, Harith |
| collection | UM |
| description | 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 |
| first_indexed | 2024-03-06T06:02:27Z |
| format | Article |
| id | um.eprints-24322 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T06:02:27Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-243222020-05-19T01:14:50Z http://eprints.um.edu.my/24322/ 1.8 µm passively Q-switched thulium-doped fiber laser Ahmad, Harith Sharbirin, Anir Syazwan Ismail, Mohammad Faizal QC Physics 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 Elsevier 2019 Article PeerReviewed 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 <https://doi.org/10.1016/j.optlastec.2019.105757>. https://doi.org/10.1016/j.optlastec.2019.105757 doi:10.1016/j.optlastec.2019.105757 |
| spellingShingle | QC Physics Ahmad, Harith Sharbirin, Anir Syazwan Ismail, Mohammad Faizal 1.8 µm passively Q-switched thulium-doped fiber laser |
| title | 1.8 µm passively Q-switched thulium-doped fiber laser |
| title_full | 1.8 µm passively Q-switched thulium-doped fiber laser |
| title_fullStr | 1.8 µm passively Q-switched thulium-doped fiber laser |
| title_full_unstemmed | 1.8 µm passively Q-switched thulium-doped fiber laser |
| title_short | 1.8 µm passively Q-switched thulium-doped fiber laser |
| title_sort | 1 8 µm passively q switched thulium doped fiber laser |
| topic | QC Physics |
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