High-energy resonantly diode-pumped Q-switched Er:YAG laser at 1617 nm

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• 作者：Zhenzhen Yu ; Mingjian Wang ; Xia Hou ; Weibiao Chen
• 刊名：Applied Physics B: Lasers and Optics
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：122
• 期：4
• 全文大小：1,149 KB
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• 作者单位：Zhenzhen Yu (1) (2)
  Mingjian Wang (1)
  Xia Hou (1)
  Weibiao Chen (1)
  
  1. Key Laboratory of Space Laser Communication and Detection Technology, Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Shanghai, 201800, China
  2. University of Chinese Academy of Sciences, Beijing, 100049, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  Physical Chemistry
  Laser Technology and Physics and Photonics
  Quantum Optics, Quantum Electronics and Nonlinear Optics
  Optical Spectroscopy and Ultrafast Optics
  Physics and Applied Physics in Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0649

文摘

We report high-energy linearly polarized operation of an Er:YAG laser at 1617 nm, resonantly pumped by quasi-continuous-wave 1470-nm laser diodes. A U-shape resonator incorporating two 0.25 at.% Er:YAG rods and an acousto-optic Q-switch was employed. Polarized output with pulse energy of 20.5 mJ and pulse width of 52 ns at a 50 Hz repetition rate was obtained. At the maximum output energy, the output beam quality M 2 was approximately 1.02 and 1.03 in horizontal and vertical directions, respectively. To the best of our knowledge, this polarized pulse energy is the highest ever reported for a directly diode-pumped Q-switched Er:YAG laser operating at 1617 nm.