In a major breakthrough for underwater communication, Japan's marine research institutions have successfully developed high-capacity optical communication technology that enables two-way data transmission over 100 meters at a speed of 20 megabits per second (Mbps). This innovation is expected to revolutionize underwater exploration and military operations by enabling real-time video transmission and more efficient data exchange beneath the ocean's surface.
According to a report from Japan's Current Affairs Agency on October 30, existing underwater wireless communication largely depends on acoustic technology, which is significantly slower—only around 10 kilobits per second (kbps). This limitation has made it difficult to transmit large volumes of data efficiently. However, a team from the Japan Marine Research and Development Agency recently tested a new optical communication device in waters up to 700 to 800 meters deep, achieving reliable two-way communication at 20 Mbps. This advancement allows for real-time video streaming, marking a significant leap forward in underwater connectivity.
The researchers believe this technology could be widely applied in various underwater operations, such as submarine exploration, communication between submersible sensors, ships, and drones, as well as in military applications like secure submarine communications. The agency, which conducts extensive marine research and resource surveys, has been supported by the Japanese Defense Ministry in developing this cutting-edge technology.
With its advanced deep-sea exploration vessels, including the Deep Sea 6500 and the Earth, the Japan Marine Research and Development Agency continues to push the boundaries of underwater science and technology. This latest development not only enhances scientific research capabilities but also strengthens national security and maritime operations. As the technology matures, it could open up new possibilities for deep-sea exploration, environmental monitoring, and even commercial applications in the future.
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