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High-beam-quality, efficient operation of passively Q-switched Yb:YAG/Cr:YAG laser pumped by photonic-crystal surface-emitting laser

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Abstract

A passively Q-switched Yb:YAG/Cr:YAG laser pumped by a photonic-crystal surface-emitting laser (PCSEL) was developed. Yb:YAG crystal was cryogenically cooled by liquid nitrogen at 77 K. Excellent Gaussian beam profile (M 2 = 1.02) and high slope efficiency of 58% were demonstrated without using a coupling optics between a laser material and PCSEL.

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Acknowledgements

This work was supported by the Photon Frontier Network of Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.

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Authors and Affiliations

  1. Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan

    Xiaoyang Guo, Shigeki Tokita, Kana Fujioka, Hiro Nishida, Noriaki Miyanaga & Junji Kawanaka

  2. Central Research Laboratory, Hamamatsu Photonics K.K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu, 434-8601, Japan

    Kazuyoshi Hirose, Takahiro Sugiyama & Akiyoshi Watanabe

  3. Department of Electronic Science and Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan

    Xiaoyang Guo, Kenji Ishizaki & Susumu Noda

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  1. Xiaoyang Guo
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  2. Shigeki Tokita
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  3. Kana Fujioka
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  4. Hiro Nishida
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  5. Kazuyoshi Hirose
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  6. Takahiro Sugiyama
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  7. Akiyoshi Watanabe
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  8. Kenji Ishizaki
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  9. Susumu Noda
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  10. Noriaki Miyanaga
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  11. Junji Kawanaka
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Correspondence to Junji Kawanaka.

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Guo, X., Tokita, S., Fujioka, K. et al. High-beam-quality, efficient operation of passively Q-switched Yb:YAG/Cr:YAG laser pumped by photonic-crystal surface-emitting laser. Appl. Phys. B 123, 194 (2017). https://doi.org/10.1007/s00340-017-6772-1

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  • DOI: https://doi.org/10.1007/s00340-017-6772-1

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