Ahmad, Harith and Monajemi, Hadieh and Thambiratnam, Kavintheran and Ismail, Mohammad Faizal (2019) Mode-locked near-infrared thulium doped fibre laser using evanescent field effect with Bi2O3 saturable absorber. Laser Physics, 29 (5). 055104. ISSN 1054-660X, DOI https://doi.org/10.1088/1555-6611/ab0d10.
Full text not available from this repository.Abstract
Using the evanescent field effect, a high power passively mode-locked laser with a pulse duration of 1.85 ps and the pulse energy of 13.15 pJ is demonstrated. A Bi2O3 solution is used as a saturable absorber (SA) on a side polished fibre incorporated into a thulium doped fibre laser cavity for operation in the mid-infrared range. The 37.61% SA has a modulation depth and creates a highly stable mode-locked pulse output with a short pulse duration. The calculated net cavity dispersion at central wavelength is -1.4 ps2, indicating operation is in the anomalous dispersion regime and confirmed by the presence of Kelly's side-bands observed in the generated optical spectrum. Radio frequency analysis reveals a high signal to noise ratio, making this laser stable for use in telecommunication systems. © 2019 Astro Ltd.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Bi2O3 saturable absorber; evanescent field effect; thulium doped fibre laser |
| Subjects: | Q Science > QC Physics |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 May 2020 02:53 |
| Last Modified: | 19 May 2020 02:53 |
| URI: | http://eprints.um.edu.my/id/eprint/24343 |
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