345 m underwater optical wireless communication with 270 Gbps data rate based on a green laser diode with NRZ-OOK modulation

. In addition, when the data rate is up to 1 Gbps, the UOWC distance is predicted to be ~62.7 m for our proposed UOWC system. The achievements we make are suitable for applications requiring high-speed long-distance real-time UOWC.