Ghosh, A. and Ali, H. N. A. and Arsad, N. and Samanta, U. K. and Das, S. and Dhar, A. and Rosol, A. H. A. and Yasin, M. and Harun, S. W. and Paul, M. C. (2023) Q-switched pulse generation by stimulated Brillouin scattering assisted four-wave mixing effect in erbium-bismuth co-doped multi-elements silica glass based optical fiber laser. Laser Physics, 33 (12). ISSN 1054-660X, DOI https://doi.org/10.1088/1555-6611/ad04c9.
Full text not available from this repository.Abstract
We demonstrate Q-switched pulse generation at the 1562.5 nm region by using a 70 cm long erbium-bismuth co-doped alumina-germania-hafnium-yttria silica glass-based fiber as a gain medium in a simple ring resonator configured without saturable absorber and optical isolator devices. The Q-switching was obtained based on a stimulated Brillouin scattering assisted four-wave mixing effect in the gain medium, which induced the intensity modulation mechanism. The laser produced a multi-wavelength output comb centered at 1562.6 nm with a peak-to-peak spacing of about 0.09 nm due to nonlinear effects. Stable Q-switched operation of a hafnia-bismuth-erbium co-doped fiber laser was obtained at a pump power range of 129-319 mW with the repetition rate varying from 45.9 kHz to 89.3 kHz and the pulse width ranging from 8.8 mu s to 3.58 mu s. A maximum pulse energy of 26.9 nJ at an average output power of 2.4 dBm was achieved. This demonstrates a new passive technique based on a highly nonlinear gain medium for realizing Q-switched all-fiber laser sources.
| Item Type: | Article |
|---|---|
| Funders: | DST-INSPIRE, New Delhi, India, Airlangga University Research Grant (2023) |
| Uncontrolled Keywords: | erbium-bismuth doped optical fiber; Q-switched pulse; stimulated Brillouin scattering; four-wave mixing; multi-wavelength output comb |
| 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: | 28 Oct 2025 08:26 |
| Last Modified: | 28 Oct 2025 08:26 |
| URI: | http://eprints.um.edu.my/id/eprint/50086 |
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