Chinese scientists from Nanjing University have developed a seamless communication network that transmits information through light. It can operate in any environment, including water, air and space. The study was published in the scientific journal magazine Optical Express.
“Wide-angle communications can be used, for example, in oceans and lakes, where sensors collect environmental data and communicate with surface buoys. The data can then be sent wirelessly across the surface of the water or long distances between cities via data links. The network can also be connected to the internet via a modem, which It gives people remotely located in the ocean access to a backbone network to exchange information, for example,” explained research team leader Yunjin Wang.
The authors of the development used four light spectrums for different types of environments. Data is transmitted underwater using blue beams, on the surface via white LEDs, in the air via ultraviolet radiation, and in space via infrared lasers. The researchers also designed the network to provide wireless or wired Internet access based on the TCP/IP scheme, making it useful for Internet of Things applications.
Tests have shown that the optical communications network is capable of broadcasting video with a resolution of 2560×1440 pixels and a frequency of 22 frames per second. The maximum data packet loss rate was 5.8% and the transmission delay was less than 74 milliseconds.
Formerly Amazon announced about plans to create a satellite Internet network that transmits information via lasers.
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Source: Gazeta
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