Chen, Yu and Cheak, Tiu Zian and Jin, Tan Sin and Vinitha, G. and Dimyati, Kaharudin and Harun, Sulaiman Wadi (2024) Domain-wall dark pulse generation with SMF-GIMF-SMF structure as artificial saturable absorber. Scientific Reports, 14 (1). p. 2141. ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-024-52640-0.
Full text not available from this repository.Abstract
We experimentally demonstrated the generation of domain-wall dark pulse in an Erbium-doped fiber laser using the combination of a 10 cm graded index multimode fiber sandwiched by single mode fibers as artificial saturable absorber. The interaction of phase difference in grade index multimode fiber allowed the stable dual-wavelength oscillation in the cavity. The dual-wavelength centered at 1567.2 nm and 1569.4 nm produces the topological defect in temporal domain and achieved a dark pulse formation with repetition rate of 21.5 MHz. The highest average pulse energy is calculated as 769.6 pJ with pulse width of 5 ns. Throughout the operating pump power range, the average pulse energy and output power increase linearly, with R2 of 0.9999 and achieved the laser efficiency of 9.33%. From the measurement in frequency domain, the signal-to-noise ratio is measured as 49 dB. As compared to reported DW dark pulse works, the proposed structure only required a short length of multimode fiber, which allowed the domain-wall dark pulse to achieve higher pulse repetition rate. The venture of domain wall dark pulse is potentially to pave the foundation toward sustainable industrial growth.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia (FRGS/1/2023/TK07/INTI/01/1), Ministry of Higher Education Malaysia (MOHE) under Fundamental Research Grant Scheme (FRGS) (INTI-FEQS-01-21-2023), INTI International University |
| Uncontrolled Keywords: | Domain; pulse generation; artificial saturable absorber |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Nov 2024 06:29 |
| Last Modified: | 11 Nov 2024 06:29 |
| URI: | http://eprints.um.edu.my/id/eprint/45738 |
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