Resonantly Pumped Tunable Tm,X:CaF2 Lasers: Effect of Buffer Ions (X = Y, La, Gd, and Lu)
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915604461518848 |
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| author | Popelová, Dominika Veselský, Karel Loiko, Pavel Benayad, Abdelmjid Braud, Alain Camy, Patrice Šulc, Jan Jelínková, Helena |
| author_facet | Popelová, Dominika Veselský, Karel Loiko, Pavel Benayad, Abdelmjid Braud, Alain Camy, Patrice Šulc, Jan Jelínková, Helena |
| contents | We report on the eye-safe laser performance of Tm3+-doped calcium fluoride crystals, modified with optically inactive "buffer" cations (Y3+, Lu3+, Gd3+, and La3+), under in-band diode-pumping at 1.68 um. In the free-running regime, the 1.5 at.% Tm, 4 at.% Y:CaF2 laser operates with a high slope efficiency of 47% with respect to absorbed pump power. By employing an MgF2 birefringent plate, the emission wavelength of this laser is continuously tuned over 242 nm (1820 - 2062 nm) highlighting its potential for broadly tunable and ultrafast oscillators. The spectroscopic properties of Tm3+ ions in CaF2 crystals with and without buffer ions are also compared. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_05235 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Resonantly Pumped Tunable Tm,X:CaF2 Lasers: Effect of Buffer Ions (X = Y, La, Gd, and Lu) Popelová, Dominika Veselský, Karel Loiko, Pavel Benayad, Abdelmjid Braud, Alain Camy, Patrice Šulc, Jan Jelínková, Helena Optics Applied Physics We report on the eye-safe laser performance of Tm3+-doped calcium fluoride crystals, modified with optically inactive "buffer" cations (Y3+, Lu3+, Gd3+, and La3+), under in-band diode-pumping at 1.68 um. In the free-running regime, the 1.5 at.% Tm, 4 at.% Y:CaF2 laser operates with a high slope efficiency of 47% with respect to absorbed pump power. By employing an MgF2 birefringent plate, the emission wavelength of this laser is continuously tuned over 242 nm (1820 - 2062 nm) highlighting its potential for broadly tunable and ultrafast oscillators. The spectroscopic properties of Tm3+ ions in CaF2 crystals with and without buffer ions are also compared. |
| title | Resonantly Pumped Tunable Tm,X:CaF2 Lasers: Effect of Buffer Ions (X = Y, La, Gd, and Lu) |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2511.05235 |