Mingjun Wu, Rongqing Tan, Hui Li, Fangjin Ning, Yijun Zheng, Ziren Zhu, Jinzhou Bai. Acousto-Optic Q-Switched Radio Frequency Waveguide CO2 Laser with High Repetition Rate and Short Pulse Width[J]. Chinese Journal of Lasers, 2023, 50(22): 2201008
- Chinese Journal of Lasers
- Vol. 50, Issue 22, 2201008 (2023)
Fig. 1. Calculation model of waveguide coupling
Fig. 2. Coupling efficiency versus distance under different curvature radii
Fig. 3. Coupling efficiency versus curvature radius at distance d=60 mm
Fig. 4. Experimental setup
Fig. 5. Peak power versus pressure under different repetition rates
Fig. 6. Pulse width versus pressure under different repetition rates
Fig. 7. Output waveform when opening time of Q switch is 5 μs
Fig. 8. Tail length versus opening time under different repetition rates
Fig. 9. Waveforms under different repetition rates. (a) 1 kHz; (b) 20 kHz; (c) 50 kHz; (d) 100 kHz
Fig. 10. Pulse width versus repetition rate
Fig. 11. Average power and peak power versus repetition rate
Fig. 12. Measurement results of beam quality factors with distribution of beam intensity shown in inset
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