Fig. 1. Experimental schematic

Fig. 2. Experimental results. (a1) The intensity profile of the laser array; (a2) The time-domain distribution of the light intensity inside the pin-hole in the open-loop state; (a3) The zoomed long exposure image in the open-loop state; (b1) The intensity profile of interference fringes; (b2) The spectrogram of light intensity inside the pin-hole in the open-loop state; (b3) The zoomed long exposure image in the close-loop state