Optimization of a Passively Q-switched Yb:YAG Laser Ignitor Pumped by a Laser Diode with Low Power and Long Pulse Width

  • Kim, Jisoo (Department of Photonic Engineering, Chosun University) ;
  • Moon, Soomin (Department of Photonic Engineering, Chosun University) ;
  • Park, Youngin (Department of Photonic Engineering, Chosun University) ;
  • Kim, Hyun Su (Department of Photonic Engineering, Chosun University)
  • Received : 2019.10.23
  • Accepted : 2020.01.16
  • Published : 2020.04.25


We successfully constructed a passively Q-switched Yb:YAG laser ignitor pumped by a diode laser with low power and long pulse width. To the best of our knowledge, this is the first study to achieve a quasi-MW output power from an optimized Q-switch Yb:YAG laser ignitor by using a pumping diode laser module emitting at under a power of 23 W. The output pulse energy of our optimized laser is 0.98 mJ enclosed in a 1.06 ns pulse width, corresponding to a peak power of 0.92 MW.


Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP), Ministry of Trade, Industry & Energy (MOTIE)


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