A study of cross-relaxation and temporal dynamics of lasing at 2 microns in Thulium doped ceramic
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912422729613312 |
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| author | Fregosi, Alessandro Brandi, Fernando Labate, Luca Baffigi, Federica Cellamare, Gianluca Ezzat, Mohamed Palla, Daniele Toci, Guido Whitehead, Alex Gizzi, Leonida A. |
| author_facet | Fregosi, Alessandro Brandi, Fernando Labate, Luca Baffigi, Federica Cellamare, Gianluca Ezzat, Mohamed Palla, Daniele Toci, Guido Whitehead, Alex Gizzi, Leonida A. |
| contents | We report the characterization of the pump absorption and emission dynamic properties of a \tulio{} ceramic lasing medium using a three mirrors folded laser cavity. We measured a slope efficiency of 73\%, which allowed us to retrieve the cross-relaxation coefficient. The behavior of our system was modeled via a set of macroscopic rate equations in both the quasi continuous wave and the pulsed pumping regime. Numerical solutions were obtained, showing a good agreement with the experimental findings. The numerical solution also yielded a cross-relaxation coefficient in very good agreement with the measured one, showing that the cross-relaxation phenomenon approaches the maximum theoretical efficiency. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_08948 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A study of cross-relaxation and temporal dynamics of lasing at 2 microns in Thulium doped ceramic Fregosi, Alessandro Brandi, Fernando Labate, Luca Baffigi, Federica Cellamare, Gianluca Ezzat, Mohamed Palla, Daniele Toci, Guido Whitehead, Alex Gizzi, Leonida A. Optics We report the characterization of the pump absorption and emission dynamic properties of a \tulio{} ceramic lasing medium using a three mirrors folded laser cavity. We measured a slope efficiency of 73\%, which allowed us to retrieve the cross-relaxation coefficient. The behavior of our system was modeled via a set of macroscopic rate equations in both the quasi continuous wave and the pulsed pumping regime. Numerical solutions were obtained, showing a good agreement with the experimental findings. The numerical solution also yielded a cross-relaxation coefficient in very good agreement with the measured one, showing that the cross-relaxation phenomenon approaches the maximum theoretical efficiency. |
| title | A study of cross-relaxation and temporal dynamics of lasing at 2 microns in Thulium doped ceramic |
| topic | Optics |
| url | https://arxiv.org/abs/2506.08948 |