Fig. 1. Schematic diagram of satellite-ground laser communication AO system based on PPPP

Fig. 2. Optical layout of PPPP experiment

Fig. 3. Zemax designed backscattered reimaging

Fig. 4. Spot diagram of backscattering reimaging with two configurations

Fig. 5. Aberrations at different field of view with h of 1 100 mm and 1 875 mm

Fig. 6. PPPP experiment bench

Fig. 7. Light intensity distribution measured by PPPP

Fig. 8. Reconstruction matrix M and inverse reconstruction matrix M-1

Fig. 9. Reconstructed phases of PPPP and SHWFS

Fig. 10. Reconstruction results with 4^th to 15^th Zernike mode

Fig. 11. Reconstruction results with 4^th to 15^th Zernike mode for 2-m telescope

Fig. 12. Reconstruction results with different photon numbers

Fig. 13. Comparison of PPPP reconstruction results with SLM at positions 1 and 2

Fig. 14. Measurements with transparent plastic sheet

Fig. 15. Reconstruction results with 6 different phase aberrations generated by transparent plastic sheets