Zhengdong Xiong, Lingling Jiang, Tingqing Cheng, Haihe Jiang. Theoretical Analysis and Experimental Study of Pulse Characteristics of Fe2+∶ZnSe Passively Q-switched 2.794 μ m Laser with High Repetition Rate[J]. Chinese Journal of Lasers, 2023, 50(6): 0601001
- Chinese Journal of Lasers
- Vol. 50, Issue 6, 0601001 (2023)
Fig. 1. Output pulse width versus initial transmittance of saturable absorber
Fig. 2. Schematic of experimental device
Fig. 3. Output pulse waveforms measured in laser Q-switching experiments under different parameters. (a) T0=93.6%,R=40%,Ф3 mm×100 mm; (b) T0=93.6%,R=30%,Ф3 mm×100 mm; (c) T0=93.6%,R=40%,Ф4 mm×100 mm; (d) T0=93.6%,R=30%,Ф4 mm×100 mm; (e) T0=91.9%,R=40%,Ф3 mm×100 mm; (f) T0=91.9%,R=30%,Ф3 mm×100 mm; (g) T0=91.9%,R=40%,Ф4 mm×100 mm; (h) T0=91.9%,R=30%,Ф4 mm×100 mm
Fig. 4. Output spectrum measured in laser Q-switching experiment with Ф3 mm×100 mm Er, Cr∶YSGG crystal at 60 Hz
Fig. 5. Output pulse waveforms measured in laser Q-switching experiment with Ф3 mm×100 mm Er, Cr∶YSGG crystal at 60 Hz. (a)(b) T0=93.6%; (c)(d) T0=91.9%
Fig. 6. Measured beam quality factors under different T0. (a) T0=93.6%; (b) T0=91.9%
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Table 1. Theoretical and experimental results of passive Q-switched laser
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