Fig. 1. Schematic diagram of a tunable pulsed CO₂ laser

Fig. 2. Relationship between the average power of a pulsed CO₂ laser and the RF excitation duty cycle

Fig. 3. CO₂ pulse waveforms obtained by mechanical Q-switching of chopper fans with different optical apertures. (a) 0.4 mm, (b) 0.8 mm, (c) 1.2 mm. (d) Pulse train at 1 kHz with slits width of 0.8 mm

Fig. 4. Small lightweight high precision electric turntable

Fig. 5. Output spectrum of mechanical Q-switched pulsed CO₂ lasers

Fig. 6. Photo of compact pulsed CO₂ laser with wavelength automatic tuning