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35 W continuous-wave Ho:YAG single-crystal fiber laser

  • Yongguang Zhao (a1) (a2), Li Wang (a1), Weidong Chen (a1), Jianlei Wang (a2), Qingsong Song (a2), Xiaodong Xu (a2), Ying Liu (a2), Deyuan Shen (a2), Jun Xu (a3), Xavier Mateos (a4), Pavel Loiko (a5), Zhengping Wang (a6), Xinguang Xu (a6), Uwe Griebner (a1) and Valentin Petrov (a1)...

Abstract

We report on a high-power Ho:YAG single-crystal fiber (SCF) laser inband pumped by a high-brightness Tm-fiber laser at 1908 nm. The Ho:YAG SCF grown by the micro-pulling-down technique exhibits a propagation loss of $0.05\pm 0.005~\text{cm}^{-1}$ at $2.09~\unicode[STIX]{x03BC}\text{m}$ . A continuous-wave output power of 35.2 W is achieved with a slope efficiency of 42.7%, which is to the best of our knowledge the highest power ever reported from an SCF-based laser in the 2 $\unicode[STIX]{x03BC}\text{m}$ spectral range.

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Copyright

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

Corresponding author

Correspondence to:  Y. Zhao, Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Max-Born-Str. 2a, D-12489 Berlin, Germany. Email: yongguangzhao@yeah.net

References

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Keywords

35 W continuous-wave Ho:YAG single-crystal fiber laser

  • Yongguang Zhao (a1) (a2), Li Wang (a1), Weidong Chen (a1), Jianlei Wang (a2), Qingsong Song (a2), Xiaodong Xu (a2), Ying Liu (a2), Deyuan Shen (a2), Jun Xu (a3), Xavier Mateos (a4), Pavel Loiko (a5), Zhengping Wang (a6), Xinguang Xu (a6), Uwe Griebner (a1) and Valentin Petrov (a1)...

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