Fig. 1. Dispersion characteristics of fused silica material. (a) Refractive index curve; (b) dispersion curve

Fig. 2. Spatial optical path simulation of beam propagation

Fig. 3. Change of spectral broadening in time-frequency domain with number of quartz plate. (a) Spectra; (b) pulse in the time domain

Fig. 4. Schematic diagram of nonlinear compression experimental setup based on multilayer thin plate

Fig. 5. Results of the nonlinear compression experiments. (a) Spectral broadening diagrams with 2, 4, and 6 pieces of fused quartz plate; (b) spectral Fourier transform limit pulse width; (c) ACF of chirped mirror-pair reflections after 18, 20, and 22 iterations

Fig. 6. Analysis of beam quality. (a) Initial beam quality; (b) beam quality after compression; (c) beam quality at average power of 5 W before optimization; (d) spatial light analysis at average powers of 50 W and 5 W; (e) beam quality at average power of 5 W after optimization

Fig. 7. Results of the extreme compression experiments. (a) Autocorrelation curve; (b) beam quality

Fig. 8. Output power of compression system