Fig. 1. Active coherent beam combining system based on LOCSET

Fig. 2. Convergence curves under different integral time (integer periods)

Fig. 3. Convergence curves and coherent beam-combining (CBC) efficiency under different integral time (non-integer periods). (a) 1.1T‒1.5T; (b) 3.1T‒3.5T; (c) 5.1T‒5.5T; (d) 10.1T‒10.5T; (e) 100.1T‒100.5T; (f) CBC efficiency

Fig. 4. Amplitude of modulation signal versus CBC efficiency under different integral time

Fig. 5. Effect of feedback coefficient on active phase control. (a) λ/400‒λ/40; (b) λ/20‒λ/10; (c) CBC efficiency

Fig. 6. Effect of loop delay on active phase control. (a) 10°‒50°; (b) 60°‒100°; (c) CBC efficiency

Fig. 7. Effect of modulation frequency on CBC efficiency

Fig. 8. Relationship between CBC efficiency and noise frequency under different modulation frequencies

Fig. 9. Relationship between CBC efficiency and noise frequency under different feedback coefficients