Ahmad, Harith and Mansor, Nur Hidayah and Reduan, Siti Aisyah and Samion, Muhamad Zharif and Yusoff, Norazriena and Bayang, Leonard (2022) Passively high-power Q-switching in Er- and Er/Yb doped fiber with CdTe. Optics & Laser Technology, 156. ISSN 0030-3992, DOI https://doi.org/10.1016/j.optlastec.2022.108510.
Full text not available from this repository.Abstract
In this work, Cadmium Telluride (CdTe) thin-film was demonstrated as a saturable absorber (SA) to induce Q-switching in the erbium-doped fiber laser (EDFL) and erbium-ytterbium co-doped fiber laser (EYDFL) cavities. CdTe thin film was prepared by the liquid-phase exfoliation method and sandwiched between two fiber ferrules to complete the fiberized SA assembly. Firstly, the CdTe-SA was inserted into the EDFL cavity and stable Q-switched pulses were observed at a threshold pump power of 88 mW. The shortest pulse width and the highest repetition rate measured for the EDFL cavity were 6.10 +/- 0.02 mu s and 42.3 +/- 1.3 kHz respectively, at a maximum pump power of 295 mW. At a maximum pump power of 295 mW, the highest average output power produced by the Q-switched pulses in the EDFL cavity was 0.15 mW. Meanwhile, Q-switched pulses in the EYDFL cavity selfstart at the threshold pump power of 1.4 W. The maximum repetition rate obtained was 99.5 +/- 1.5 kHz and a pulse width of 2 mu s at a maximum pump power of 3 W. At this pump power, the highest average output power produced by the Q-switched pulses in the EYDFL cavity was 70.0 +/- 0.2 mW. This is the first demonstration of a high average power passively Q-switched fiber laser operating in the C-band employing EDF and EYDF as the gain medium and CdTe thin-film as SA that we are aware of.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya [RU005-2021] [RK021-2019], Science and Technology Development Fund (STDF) Ministry of Higher Education & Scientific Research (MHESR) |
| Uncontrolled Keywords: | Saturable absorber; Cadmium Telluride; Q-switching; Erbium-Ytterbium doped fiber; Erbium-doped fiber; High power |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 25 Aug 2023 07:23 |
| Last Modified: | 25 Aug 2023 07:23 |
| URI: | http://eprints.um.edu.my/id/eprint/40932 |
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