Abstract
Here, we demonstrate a broadband tunable (Lu0.0541Tm0.0548Gd0.8911)3Ga3O12 (Tm:LuGGG) laser in-band pumped by a homemade 1645-nm Er:YAG laser. A maximum average output power of 0.7 W at 1997 nm is obtained with a slope efficiency of 46.3%. We also demonstrate a continuously tuning output ranging from1854 to 2066 nm with a tuning coverage of 212 nm. The results indicate that the Tm:LuGGG crystal is an excellent laser medium for high-efficient broadband light generation, which may help to explore potential applications in ultrafast lasers.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (62175133), the Natural Science Foundation of Shandong Province (ZR2020MF115), and the SDUST Research Fund (skr21-3-049, 2019TDJH103).
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Ning Zhang: Experiment, Writing-Original Draft, Writing-Review & Editing; Ning Zhang, Peifu Wang and Bo Chen: Laser experiment, Methodology, Investigation; Zhanxin Wang, Shande Liu and Yongguang Zhao: Experiment, prepared figures, analysis; Zhitai Jia and Baitao Zhang: Materials analysis and processing; Shande Liu and Zhipei Sun: Conceptualization, Writing-Original Draft, Writing-Review & editing, Supervision; All authors reviewed the manuscript.
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Zhang, N., Wang, P., Chen, B. et al. High-efficiency broadband (> 210 nm) in-band pumped Tm:LuGGG solid-state laser. Appl. Phys. B 128, 128 (2022). https://doi.org/10.1007/s00340-022-07852-5
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DOI: https://doi.org/10.1007/s00340-022-07852-5