Graphene-based passively Q-switched Nd:KLu(WO4)2 eye-safe laser operating at 1,425?nm

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• 作者：Huanian Zhang (1)
  Xiaohan Chen (1)
  Qingpu Wang (2)
  Xingyu Zhang (1)
  Jun Chang (1)
  Liang Gao (1)
  Hongbin Shen (1) (3)
  Zhenhua Cong (1)
  Zhaojun Liu (1)
  Huaijin Zhang (4)
  Jing Li (4)
  Ping Li (1) (4) (5)
  
• 刊名：Applied Physics B: Lasers and Optics
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：114
• 期：3
• 页码：313-317
• 全文大小：1,132 KB
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• 作者单位：Huanian Zhang (1)
  Xiaohan Chen (1)
  Qingpu Wang (2)
  Xingyu Zhang (1)
  Jun Chang (1)
  Liang Gao (1)
  Hongbin Shen (1) (3)
  Zhenhua Cong (1)
  Zhaojun Liu (1)
  Huaijin Zhang (4)
  Jing Li (4)
  Ping Li (1) (4) (5)
  
  1. School of Information Science and Engineering, Shandong University, Jinan, 250100, China
  2. Advanced Research Center for Optics, Shandong University, Jinan, 250100, China
  3. Department of Optics and Electronic Engineering, Ordnance Engineering College, Shijiazhuang, 050003, China
  4. Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan, 250100, China
  5. State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
  
• ISSN：1432-0649

文摘

With graphene as saturable absorber, an Nd:KLu(WO4)2 eye-safe laser operating at 1,425?nm is demonstrated. To the best of our knowledge, this is the first demonstration that an Nd:KLu(WO4)2 laser operates at the eye-safe 1.4-μm region. A maximum total average output power of 170?mW is obtained under the pump power of 9.6?W, corresponding to an optical–optical efficiency of 1.77?%. The minimum pulse width and the highest pulse repetition rate are 153?ns and 97?kHz, respectively. Also the characteristics of the graphene used as saturable absorber for a 1.4-μm laser were studied for the first time.