The extremely fast flashing speed of blue and green LEDs - overspeed modulation - is a necessary chain to increase the speed of information transfer through the optical channel in open water, such as between boats and submarines, between submarines and divers, underwater Information transfer between environmental sensors and unmanned submersibles. If this speed is greatly increased, wireless optical communication will eventually replace the underwater acoustic communication system in short-range applications. Acoustic communication is limited by low speed and low information rate, and may cause interference to whales, dolphins and other marine life.
Researchers say the results of this research will likely be applied to traditional LEDs in the future, and the biggest challenge for such applications may be integration. The researchers plan to test the speeding flash LED configuration in the San Diego waters of the United States, and they expressed the hope that the research results can be translated into LED commercial applications.
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