We study the employment of an adopted optics system for the reduction of thermal blooming effects by the phase correction of a 1.064 mu m laser. The energy concentration of the beam spot in the farfield substantially increases if the adaptive optics system is performed in a closed loop. The phase compensation of the adapted optics system is effective for a Bradley-Hermann distortion number of less than 130. The experimental results obtained are in good agreement with the simulation results. This study provides many physical explanations and important conclusions for using adaptive optics to reduce the thermal blooming effect.