| Anchored submerged marker observations are an important method for obtaining fixed-point, long-period oceanographic data.However, the timeliness of self-capacitating submersible observation data is poor, and the current way of real-time transmission of sub-mersible observation data by relay equipment is not stable enough, which is easy to be affected by meteorological conditions and lead to communication interruption. Therefore, in order to realize the relay-free real-time transmission of submersible observation data, this paper designs and develops a cross-sea gas-optical communication system based on laser communication. Through field experiments in the shelf area of the northeastern Bering Sea, it is verified that the trans-ocean-gas optical communication system can achieve relay-free trans-oceangas transmission of underwater temperature and salt data in the open ocean. It lays the foundation for the future development of relay-free real-time transmission anchor dive tag equipment based on optical communication, which will provide more accurate and real-time data support for ocean observation and environmental monitoring in the future. |