They managed to do this with the help of a gigahertz transmitter integrated with DSL technology - the same one used to transmit data over a modem over regular telephone lines. Speeds of 10 Tbit / s - 1000 times faster than conventional DSL channels - were achieved over a short distance. With its increase, the speed dropped noticeably. After revision, the technology can be used in data centers for fast transfer of large amounts of data.
Using the same technology that allows data to be transmitted over a modem over regular telephone lines, American scientists have transmitted data at speeds of at least 10 Tbps over short distances - significantly faster than other telecommunications technologies can.
In the 1990s, digital subscriber line (DSL) provided users with quick access to the Internet. This technology was based on the fact that existing lines are capable of transmitting data over a much wider range than is necessary for voice communications. With the help of megahertz frequencies, modern DSL technologies achieve downstream data rates of up to 100 Mbps at distances of up to 500 meters, and over 1 Gbps at shorter distances.
The idea for the new study was proposed to a physicist at Brown University, Daniel Meatlman, by John Choffey, the "father of DSL," who wanted to understand whether recent advances in the development of gigahertz transmitters could boost data rates a thousandfold, Spectrum writes.
To do this, scientists began experimenting with sending a continuous 200-gigahertz signal through equipment that mimics the twisted pair of telephone cables commonly used for DSL communications. It consisted of two copper wires with a diameter of 0.5 mm running in parallel inside a wide steel tube. The metal sheath was designed to contain signal energy and minimize bending losses.
When the researchers analyzed the output port, they found that the signal energy was distributed in space in a way that confirmed that it was distributed over multiple channels. They concluded that the system can support speeds of about 10 Tbps over distances of up to three meters. At a distance of 15 meters, it dropped to 30 Gbps.
The idea of scientists can find application in areas requiring fast transfer of large amounts of data over short distances, for example, in data centers or between microchips. In the future, they intend to increase the range of the system, reducing energy losses.
A new method of wireless data transmission was proposed by British engineers. Having made a breakthrough in the control of terahertz quantum-cascade lasers, they achieved speeds of 100 Gbit / s.
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Georgy Golovanov