Fig. 1. The approximate structure and location of FOA in NIF^［5］

Fig. 2. Different types of damage photos^［7-8］

Fig. 3. Online inspection process^［15］

Fig. 4. Deep learning network structure combining CNN and EDT^［31］

Fig. 5. Schematic of diffraction ring detecting hot image damage^［38］

Fig. 6. Deep learning network structure to detect the diffraction ring

Fig. 7. Partial experimental results of LI Zhan et al ^［43］

Fig. 8. Schematic of deep learning and damage reconstruction model

Fig. 9. Simulation training results，diffraction pattern and recovery intensity of damage with different diameter and diffraction distance

Fig. 10. Comparison before and after repair^［55］

Fig. 11. Optics recycle loop strategy^［42］