Fig. 1. Three-dimensional acoustic field simulation calculation domain

Fig. 2. Distribution of coherent sound fields at different sound source frequencies. (a) f=1000 Hz; (b) f=2000 Hz; (c) f=3000 Hz

Fig. 3. Sound pressure distribution at different sound wave propagation distances

Fig. 4. Sound pressure distribution at same distance with different acoustic frequencies

Fig. 5. Schematic diagram of the experimental system

Fig. 6. Laser transmission characteristics at a height of 0.3 m between laser optical path and sound source. (a) Beam drift fluctuation variance; (b) scintillation index; (c) beam diameter

Fig. 7. Laser transmission characteristics at a height of 0.5 m between the laser optical path and sound source. (a) Beam drift fluctuation variance; (b) scintillation index; (c) beam diameter

Fig. 8. Variation of laser transmission characteristics with sound source frequency at a sound pressure level of 120 dB. (a) Beam drift fluctuation variance; (b) scintillation index; (c) beam diameter

Fig. 9. Variation of laser transmission characteristics with sound pressure level at a frequency of 400 Hz. (a) Beam drift fluctuation variance; (b) scintillation index; (c) beam diameter

Fig. 10. Variation of laser transmission characteristics with sound pressure level at a frequency of 1000 Hz. (a) Beam drift fluctuation variance; (b) scintillation index; (c) beam diameter