Russian scientists have developed a data encoding method for the 6G standard
Researchers have proposed a way to modify terahertz pulses, which allows their use for data transmission in wireless networks.
Telecommunications companies around the world are just starting to implement the 5G standard, but scientists are already working on the next replenishment technology. 6G will increase the data transfer rate by 100-1000 times, but for this you will need to switch to the terahertz range. The difficulty is that due to the short length and small number of field oscillations of such waves, it is practically impossible to use them for wide transmission through one physical channel.
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To solve this problem, a team from the ITMO National Research University proposed to increase the pulse duration so that its internal frequencies appear sequentially. This allows you to create the necessary interference between them while maintaining the range. Since currently the methods of linear frequency modulation for terahertz waves are not well understood, the scientists decided to use the technologies applied to microwave radiation.
The researchers took a suitable metal dispersion waveguide with a high dispersion and passed a broadband signal through it so that it could propagate in different configurations. As a result, the pulse became longer, fluctuating from 2 to 7 picoseconds, which is enough to separate the channels.
Earlier, we also reported on the development of photonic nanodetectors, which can increase the speed of the Internet by 100 times.