Experimental investigation of the stimulated Raman scattering effect in high-power nanosecond superfluorescent fiber source
| Autor: | Chaoyu Ning, Shuzhen Zou, Haijuan Yu, Jiexi Zuo, Xuechun Chen, Shuang Xu, Shifei Han, Xinyao Li, Wenjuan Wu, Chaojian He, Xuechun Lin |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | High Power Laser Science and Engineering, Vol 11 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2095-4719 2052-3289 |
| DOI: | 10.1017/hpl.2023.72 |
| Popis: | In this work, we experimentally investigate the dependence of the stimulated Raman scattering (SRS) effect on the seed linewidth of a high-power nanosecond superfluorescent fiber source (ns-SFS). The results reveal that the SRS in the ns-SFS amplifier is significantly influenced by the full width at half maximum (FWHM) of the ns-SFS seed, and there is an optimal FWHM linewidth of 2 nm to achieve the lowest SRS in our case. The first-order SRS power ratio increases rapidly when the seed’s linewidth deviates from the optimal FWHM linewidth. By power scaling the ns-SFS seed with the optimal FWHM linewidth, a narrowband all-fiberized ns-SFS amplifier is achieved with a maximum average power of 602 W, pulse energy of 24.1 mJ and corresponding peak power of 422.5 kW. This is the highest average power and pulse energy achieved for all-fiberized ns-SFS amplifiers to the best of our knowledge. |
| Databáze: | Directory of Open Access Journals |
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