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http://dx.doi.org/10.3807/COPP.2020.4.3.238

Pulsed-laser-diode Intermittently Pumped 2-㎛ Acousto-optic Q-switched Tm:LuAG Laser  

Wen, Ya (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
Jiang, Yan (Sichuan Aerospace Fenghuo Servo Control Technology Corporation)
Zheng, Hao (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
Zhang, Hongliang (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
Wang, Chao (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
Wu, Chunting (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
Jin, Guangyong (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
Publication Information
Current Optics and Photonics / v.4, no.3, 2020 , pp. 238-246 More about this Journal
Abstract
The heat distribution in crystals in a 2-㎛ acousto-optic Q-switched Tm:LuAG laser pumped by pulsed-laser-diode (pulsed-LD) intermittent-pumping technology was analyzed using COMSOL software. The thermal lensing effect of the Tm:LuAG crystal can be mitigated by pulsed-LD intermittent-pumping techniques. An experimental setup using this kind of approach achieved maximum output energy of 8.31 mJ, minimum pulse width of 101.9 ns, and highest peak power of 81.55 kW, reached at a Q-switched repetition rate of 200 Hz. It offers significant improvement of performance of the output laser beam, compared to pulsed-LD double-ended pumping technology at the same repetition rate.
Keywords
Tm:LuAG laser; Q-switched; Pulse-diode; Intermittent-pumped;
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Times Cited By KSCI : 6  (Citation Analysis)
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