High Power and Efficient Operation of Tm:YAG Ceramic Laser Resonantly Pumped at 1620 nm
We report on high power and narrow linewidth laser operation of home-developed high optical quality Tm:YAG ceramic. The Tm<sup>3+</sup> ion is pumped directly to the upper energy level of the ∼ 2 μm laser transition (<sup>3</sup>F&l...
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| Autores principales: | , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
IEEE
2022
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/4af80696efd04844b30db0d015c7c576 |
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| Sumario: | We report on high power and narrow linewidth laser operation of home-developed high optical quality Tm:YAG ceramic. The Tm<sup>3+</sup> ion is pumped directly to the upper energy level of the ∼ 2 μm laser transition (<sup>3</sup>F<sub>4</sub> → <sup>3</sup>H<sub>6</sub>) using a high power 1620 nm fiber Raman laser. The laser generated 15.1 W of output at 2013 nm in free running for 27.4 W of absorbed pump power, corresponding to a slope efficiency of 64.0% with respect to absorbed pump power. Employing a reflecting volume Bragg grating (VBG) as a resonator mirror and for spectrum control, the laser generated 11.8 W of 0.1 nm narrow linewidth output at 2015 nm for ∼24 W of absorbed pump power, corresponding to a slope efficiency of 61.5%. |
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