Fig. 1. The diagram of UWOC test system block

Fig. 2. 200 m/500 Mbit/s UWOC system setup schematic diagram^[12]

Fig. 3. Zhejiang university ocean college wave-current movable bed silty harbor pool

Fig. 4. Zhejiang university ocean college large cross-section wave-current water tank

Fig. 5. Zhejiang university ocean college anechoic water tank

Fig. 6. Depth-related attenuation coefficients for different wavelengths at 12 m water depth and 1 nautical mile from the coast^[49]

Fig. 7. Sea trial diagram of UWOC system based on Nd∶YAG laser^[49]

Fig. 8. Tri-color LD WDM-UWOC system setup schematic diagram^[58]

Fig. 9. MOPA-based UWOC system and principle^[59]

Fig. 10. UWOC experimental setup diagram based on FPGA and optical fiber combiner^[60]

Fig. 11. Single-mode pigtail green LD UWOC system setup diagram^[61]

Fig. 12. Schematic diagram of NLOS UWOC system experimental setup based on ultraviolet laser^[62]

Fig. 13. CORK optical telemetry system sea trial schematic diagram^[62]