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Near-diffraction-limited 156 W laser-diode end-pumped Yb:YAG Innoslab laser operated at room temperature

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Abstract

We report our findings on laser-diode end-pumped Yb:YAG slab output characteristics when using a compact positive confocal unstable–stable hybrid resonator at room temperature. Preliminary experimental results show that for an absorbed pump power of 680 W, a maximum output power of 156 W was produced at 1030 nm with a stability of 0.9%. An optical-to-optical efficiency of 22.9% and slope efficiency of 37.1% were obtained, and the beam quality M 2 factors in the unstable and stable direction were 1.04 and 1.01, respectively.

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Acknowledgements

This work is sported by Chinese 863 Project (2015AA043504) and Chinese Natural Scientific Foundation (61575021).

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Authors and Affiliations

  1. School of Optoelectronics, Beijing Institute of Technology, Beijing, 100081, China

    Yefei Mao, Xianglong Hao, Jiahua Yuan, Yi Jiang & Hengli Zhang

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  1. Yefei Mao
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  2. Xianglong Hao
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  3. Jiahua Yuan
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  4. Yi Jiang
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  5. Hengli Zhang
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Correspondence to Hengli Zhang.

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Mao, Y., Hao, X., Yuan, J. et al. Near-diffraction-limited 156 W laser-diode end-pumped Yb:YAG Innoslab laser operated at room temperature. Appl. Phys. B 122, 279 (2016). https://doi.org/10.1007/s00340-016-6552-3

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  • DOI: https://doi.org/10.1007/s00340-016-6552-3

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