Songqing Zha, Yujin Chen, Mingyao Deng, Yanfu Lin, Bingxuan Li, Yuqi Zou, Wenbin Liao, Zhanglang Lin, Ge Zhang. Passively Q-Switched a-Cut Er, Yb∶YAl3(BO3)4 Microchip Laser[J]. Chinese Journal of Lasers, 2021, 48(13): 1301004
- Chinese Journal of Lasers
- Vol. 48, Issue 13, 1301004 (2021)
Fig. 1. Diagram of laser operating mechanism of energy level structure in Er, Yb∶YAB crystal
Fig. 2. Transmission spectrum of Co2+∶MgAl2O4 crystal, and experimental setup for passively Q-switched a-cut Er, Yb∶YAB microchip laser. (a) Transmission spectrum of Co2+∶MgAl2O4 crystal; (b) experimental setup for passively Q-switched a-cut Er, Yb∶YAB microchip laser
Fig. 3. Experimental performance of microchip laser. (a) Average output power and single pulse energy; (b) repetition rate and pulse duration
Fig. 4. Results recorded by oscilloscope for incident power of 7.2 W. (a) Pulse train and pulse repetition rate; (b) single pulse profile and pulse duration
Fig. 5. Test result of pulse laser polarization, and 2D and 3D images of pulse output spots. (a) Test result of pulse laser polarization; (b) 2D and 3D images of pulse output spots
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Table 1. Conversion efficiency and maximum output power of various representative crystals in continuous laser experiments
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