Fig. 1. Output spectrum of pulsed HF laser

Fig. 2. Absorption attenuation of pulsed HF laser in full spectrum output

Fig. 3. Absorption coefficient of pulsed HF laser in full spectrum output in air

Fig. 4. Reflectivity curve of the coated mirror

Fig. 5. Output spectrum after the spectrum optimization

Fig. 6. Absorption attenuation after the spectrum optimization

Fig. 7. Absorption coefficient after the spectrum optimization