Fig. 1. Engineering optical path with CPP in the high power laser terminal system

Fig. 2. Quantification of 3D light field. (a) Indirectly driven black cavity injection model; (b) directly driven spherical target compression model

Fig. 3. Nonlinear effect modulation by KDP and WFL. (a) Local peak intensity at different thicknesses in fused silica; (b) nonlinear phase shift related to local B integral

Fig. 4. Calculation model of two indicators for characterizing spot evolution in 3D space. (a) Spot position offset to optical axis; (b) spot intensity distribution of 4 quadrants in x'Oy' coordinate

Fig. 5. Defocus transmission model

Fig. 6. CPP design focal spot under ideal irradiation. (a) 2D focal spot; (b) 1D intensity along two orthogonal directions through the center of optical axis

Fig. 7. Only include nonlinear phase shift at I(z)=5 GW/cm2. (a) Far-field spot; (b) 4 mm defocusing spot

Fig. 8. γ and η versus nonlinear phase shift. (a) γx; (b) ηLRand ηUD

Fig. 9. Intensity in 4 mm defocusing plane taking into accounts both nonlinear intensity and phase distortions. (a) 2D spot; (b) 1D intensity curve of two orthogonal directions

Fig. 10. Position shift and symmetry varying with defocusing distance. (a) Position shift; (b) symmetry