Journal
OPTICS LETTERS
Volume 47, Issue 4, Pages 774-777Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.448898
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Funding
- National Natural Science Foundation of China [61805117, 62075166]
- Amada Foundation [AF-2019221-B3]
- National Institute for Fusion Science [ULHH040]
- Japan Society for the Promotion of Science [18H01204]
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A Tb,Y:SrF2 crystal with high optical quality was grown using the temperature gradient technique. The study showed that the crystal has a long fluorescence lifetime and good laser output power in the visible spectral region, making it a promising candidate for laser applications.
A Tb,Y:SrF2 crystal with high optical quality is grown using the temperature gradient technique. The spectroscopic and laser properties of the crystal in the visible spectral region are studied. A fluorescence lifetime of 5.6 ms is measured from the crystal, which is beneficial for laser operation with a low threshold. A continuous-wave Tb,Y:SrF2 laser delivers an output power of 259 mW at 545 nm, with a slope efficiency of 35.2%. To the best of the authors' knowledge, this is the first report on a Tb-doped SrF2 laser and represents the highest output power for visible alkaline-earth fluoride lasers. The limitations for power scaling are discussed. (C) 2022 Optica Publishing Group
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