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

被引：0
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作者：
Xiaoyang Guo
Shigeki Tokita
Kana Fujioka
Hiro Nishida
Kazuyoshi Hirose
Takahiro Sugiyama
Akiyoshi Watanabe
Kenji Ishizaki
Susumu Noda
Noriaki Miyanaga
Junji Kawanaka
机构：
[1] Osaka University,Institute of Laser Engineering
[2] Hamamatsu Photonics K.K.,Central Research Laboratory
[3] Kyoto University,Department of Electronic Science and Engineering
来源：
Applied Physics B | 2017年 / 123卷
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摘要：
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 (M2 = 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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