Fig. 1. Application scenarios of UVLC system

Fig. 2. Flow chart of system design

Fig. 3. Optical properties of seawater

Fig. 4. Absorption coefficient of pure water and chlorophyll for different optical wavelengths

Fig. 5. Optical link model

Fig. 6. Simulation diagram of receiver optical power

Fig. 7. Optical power distribution with different number of channels in underwater environment

Fig. 8. Channel capacity simulation of UVLC system

Fig. 9. UDP frame format diagram

Fig. 10. Flow chart of FPGA data processing

Fig. 11. Underwater environment experiment of system

Fig. 12. Comparison of underwater test results