LD pumped passively Q-switched ceramic Nd:YAG 946 nm laser with a high peak power output

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• 作者：Deying Chen ; Hu Pan ; Renpeng Yan ; Xin Yu ; Jiang Li…
• 关键词：LD ; pumped ; Passively Q ; switched ; Ceramic Nd ; YAG ; 946 nm Laser
• 刊名：Optical and Quantum Electronics
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：48
• 期：2
• 全文大小：759 KB
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• 作者单位：Deying Chen (1)
  Hu Pan (1)
  Renpeng Yan (1)
  Xin Yu (1)
  Jiang Li (2)
  Yufei Ma (1)
  Xudong Li (1)
  Yubai Pan (2)
  Jing Gao (3)
  
  1. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, 150001, China
  2. Key Laboratory of Transparent and Opto-Functional Advanced Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
  3. Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, China
  
• 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X

文摘

A compact multi-kilohertz, high-peak-power laser-diode end-pumped Nd:YAG ceramic quasi-three-level 946 nm laser is demonstrated. The maximum output power of 2.3 W is obtained in continuous-wave ceramic Nd:YAG 946 nm laser under the pump power (P_in) of 14.2 W. A Cr4+:YAG with an initial transmissivity of 92 % at 946 nm is utilized as saturable absorber in passively Q-switched laser. The average power of passively Q-switched 946 nm laser reaches 0.96 W with an optical-to-optical efficiency of 6.7 %. The pulse repetition frequency increases linearly with pump power and peaks at 8.2 kHz. The pulse width does not vary obviously versus pump power and the shortest pulse width of 946 nm laser is 13.0 ns. The output peak power is estimated to be 12.4 kW, much higher than previous results in pulsed ceramic Nd:YAG 946 nm laser.