Abstract
We demonstrate the generation of multiple lasing wavelength in the L- and U-band from a Brillouin-Raman fiber laser. It was designed in a full-open cavity with a dispersion compensating fiber section as the nonlinear and Raman gain medium. A broadband source originated from the amplified spontaneous emission of an erbium-ytterbium-doped fiber amplifier was employed as the primary Raman pump. The proposed fiber laser system required a threshold power of 400 mW to initiate its first Brillouin Stokes line with 0.165 nm wavelength spacing. A total of 397 Stokes lines within 3-dB flatness of peak power extended from 1609.7 to 1675.0 nm corresponding to 65.3 nm wavelength range were obtained at the pump power of 850 mW. The utilization of broadband Raman pump source has enhanced the spectral bandwidth of multiwavelength generation. This approach is simple and can be employed to other wavelength ranges subject to the availability of the broadband pump source.
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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
This research work was supported by the Universiti Tun Hussein Onn Malaysia (UTHM) Post-Doctoral Scheme, Ministry of Higher Education (MOHE) Malaysia (FRGS/1/2018/TK04/UTHM/02/5 Vot K062) and the King Saud University, Kingdom of Saudi Arabia, under Researchers Supporting Project number (RSP2023R336).
Funding
1. Universiti Tun Hussein Onn Malaysia (UTHM) Post-Doctoral Scheme.
2. Ministry of Higher Education (MOHE) Malaysia (FRGS/1/2018/TK04/UTHM/02/5 Vot K062).
3. King Saud University, Kingdom of Saudi Arabia, under Researchers Supporting Project number (RSP2023R336).
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A.W. Al-Alimi is in charge for Conceptualization, Methodology, Investigation, Writing – original draft; N.A. Cholan for Supervision, Writing – review & editing; N. H. Zainol Abidin for Investigation, Formal analysis; M.T. Alresheedi for Funding acquisition, Project administration; A.F. Abas for Resources. Validation; E. K. Ng for Validation, Writing – review & editing; M.A.Mahdi for Supervision, Writing – review & editing.
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Al-Alimi, A.W., Cholan, N.A., Zainol Abidin, N.H. et al. L-U-band multiwavelength Brillouin-Raman fiber laser assisted by a broadband pump source. Opt Quant Electron 55, 1168 (2023). https://doi.org/10.1007/s11082-023-05338-y
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DOI: https://doi.org/10.1007/s11082-023-05338-y