Fig. 1. Overall structure of laser circumferential detection system. (a) Six quadrant partition scheme; (b) single partition structure; (c) conical detection field of view

Fig. 2. Structure diagram of beam shaping system

Fig. 3. Ideal flat top distribution. (a) Light intensity distributions at different lengths; (b) relationship between energy distribution and spot size

Fig. 4. Deflection of a beam incident on a prism. (a) Meridian plane; (b) sagittal plane

Fig. 5. Effect of aspheric lens collimation. (a) Energy distribution of meridional light spot at 15 m; (b) energy distribution of sagittal light spot at 15 m

Fig. 6. Relationship between proportion of energy in X direction at 15 m and size in Xdirection

Fig. 7. Energy distributions in sagittal direction at different distances. (a) 2 m; (b) 6 m; (c) 10 m; (d) 15 m

Fig. 8. Overall structure of emission optical system. (a) Structur diagram of single partition; (b) structure diagram of six partitions

Fig. 9. Irradiance distributions of overall system on target surfaces at different distances. (a) 2 m; (b) 6 m; (c) 10 m; (d) 15 m

Fig. 10. Relationship between circumferential average irradiance and angle of annular field of view