Fig. 1. Arrangement of laser coherent arrays and phase controlling model. (a) Structural diagram of coherent arrays with regular hexagon arrangement; (b) sawtooth tilting phase control model

Fig. 2. Near-field and far-field light intensity distributions for coherent arrays with different numbers of array elements when D0 is equal.(a)(d) 19 channels; (b)(e) 127 channels; (c)(f) 919 channels

Fig. 3. Near-field and far-field light intensity distributions for coherent arrays with different area filling factors. (a)(d) 0.019; (b)(e) 0.125;(c)(f) 0.907

Fig. 4. Relationship between number of arraysand energy concentration. (a) Relationship between number of arraysand BPF;(b) relationship between number of arraysand PSLR

Fig. 5. Scanning angles and diffraction efficiencies of array light field. (a) Relationship between maximum optical path difference and scanning angle; (b) relationship between diffraction efficiency and scanning angle under ideal conditions

Fig. 6. Near-field light intensity distributions of regular hexagonal coherent laser arrays with different numbers of array elements. (a) 19 channels; (b) 127 channels; (c) 919 channels

Fig. 7. Near-field phase distributions and intensity distributions of corresponding far-field scanning points for coherent array under different deflection conditions when N=19

Fig. 8. Near-field phase distributions and intensity distributions of corresponding far-field scanning points for coherent array under different deflection conditions when N=127

Fig. 9. Near-field phase distributions and intensity distributions of corresponding far-field scanning points for coherent array under different deflection conditions when N=919

Fig. 10. Quasi-continuous scanning patterns of coherent array under different N. (a)‒(d) N=19; (e)‒(h) N=127; (i)‒(l) N=919

Fig. 11. Customization of optical filed patterns generated by tilting phase-controlled coherent laser arrays. (a)‒(c) N=19; (d)‒(f) N=127; (g)‒(i) N=919

Fig. 12. Far-field light spots of laser arrays under different phase errors. (a1)‒(a4) N=19; (b1)‒(b4) N=127; (c1)‒(c4) N=919

Fig. 13. Relationship between BPF and phase error for different laser arrays

Fig. 14. Two-dimensional quasi-continuous scanning patterns of laser arrays under different phase errors. (a1)‒(a4) N=19; (b1)‒(b4) N=127; (c1)‒(c4) N=919

Fig. 15. Influence of laser array unit coherence on scanning performance when N=19. (a) BPF curves under different lc; (b)BPF curves under different scanning angles

Fig. 16. Experimental device for verifying scanning effects of tilting phase-controlled coherent arrays

Fig. 17. Verification experiment results of scanning effects of tilting phase-controlled coherent arrays when N=19