Fig. 1. Schematic devices for laser cutting experimentation of diamond with large cutting depth

Fig. 2. Depth of cutting and width of cutting seam of upper surface as a function of laser power

Fig. 3. Laser cutting effect with focusing on different positions

Fig. 4. Measurement results of width of laser cutting seam of upper surface at different repetition rates

Fig. 5. Influence of repetition rates of laser on cutting depth and width of cutting seam of upper surface

Fig. 6. Spacing of laser spot and surface roughness versus scanning speed of laser cutting

Fig. 7. Measurement results of upper surface width of cutting seam at multi-transverse mode and single-transverse mode laser respectively