Ahmad, Harith and Al-Alimi, A.W. (2019) Wide-band multiwavelength Brillouin–Raman fiber laser based on feedback optimization. Optics Communications, 453. p. 124402. ISSN 0030-4018, DOI https://doi.org/10.1016/j.optcom.2019.124402.
Full text not available from this repository.Abstract
A multiwavelength Brillouin–Raman fiber laser (BRFL) with a 51-nm wide bandwidth is proposed and demonstrated. The BRFL is configured in a half-open cavity (HOC) design with a variable optical attenuator in the cavity. The BRFL exhibits a 60 % improvement in tunability as compared to a conventional half-open BRFL structure. At a Raman pump power of 1.2 W and 1525 nm Brillouin pump power of 12 dBm, 652 uniform Stokes lines with an average optical signal to noise ratio (OSNR) higher than 40 dB are produced. The generated channels have a total output power of 14.5 dBm and a power fluctuation of 0.5 dB over a period of one hour. In contrast, the conventional HOC shows a lower performance in terms of tuning range, OSNR and Stokes lines count. The 51 nm bandwidth using a single Raman pump laser is, to the best of our knowledge, the widest yet reported. © 2019 Elsevier B.V.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Malaysia for funding this research under the grant GA 010 – 2014 (ULUNG), University of Malaya for funding this research under the grant RU 013-2018, HiCoE Phase II Funding, Malaysia |
| Uncontrolled Keywords: | Fiber laser; Multiwavelength Brillouin–Raman fiber laser; Brillouin–Raman; Stimulated Brillouin scattering; Variable optical attenuator; Line suppression |
| 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 01:07 |
| Last Modified: | 19 May 2020 01:07 |
| URI: | http://eprints.um.edu.my/id/eprint/24320 |
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