Ahmeed, Mahmoud M. and Ahmad, B. A. and Supian, Latifah Sarah and Diblawe, Abdulkadir Mukhtar and Harun, Sulaiman Wadi (2025) Generation of Dark Pulses in Mode-Locked Erbium-Doped Fiber Ring Laser Operating in L-Band Region Using Sc2O3 Absorber. Microwave and Optical Technology Letters, 67 (1). e70103. ISSN 0895-2477, DOI https://doi.org/10.1002/mop.70103.
Full text not available from this repository.Abstract
By incorporating scandium oxide (Sc2O3) powder into a PVA film, a Sc2O3 saturable absorber (SA) was successfully developed, boasting a modulation depth of 25%. When integrated into a ring erbium-doped fiber laser, the Sc2O3-SA facilitated the production of mode-locked dark pulses featuring multi-wavelength emission, leveraging its saturable absorbing ability along with the nonlinear properties inherent in the Sc2O3 thin film and the long erbium-doped fiber. Mode-locking operation was achieved within a pumping range of 209.3-239.8 mW, resulting in a peak pulse energy of 0.71 nJ. Operating at 1597.8 nm, the mode-locked laser demonstrated a repetition rate of 10.42 MHz and a pulse width of 23 ns. Domain-wall dark pulse operation was demonstrated in the L-band region, achieving a relative stability with a signal-to-noise ratio of 55.6 dB, utilizing a Sc2O3 thin film absorber and an 8-meter-long active fiber. These findings underscore the promising potential of Sc2O3 to be used in pulsed laser systems, particularly due to its exceptional nonlinear optical properties.
| Item Type: | Article |
|---|---|
| Funders: | The study was supported by the Ministry of Higher Education, Malaysia (FRGS/1/2023/TK07/UM/01/2). (FRGS/1/2023/TK07/UM/01/2), Ministry of Education, Malaysia |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 13 Mar 2025 04:49 |
| Last Modified: | 14 Mar 2025 01:07 |
| URI: | http://eprints.um.edu.my/id/eprint/47748 |
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