Japan breaks the world record for data transfer speed!

New technology developed by Japanese engineers broke the previous record for data transfer speed.

Over an optical cable over 3,000 km long, the team achieved a data transfer speed of 319 terabytes per second (Tb / s).

Not only does this break the previous record of 178TB / s, but the technology is compatible with existing infrastructure, which means it can be upgraded relatively easily.

The new record was set by a team of scientists and engineers led by physicist Benjamin Putnam of the Japan National Institute of Information and Communication Technologies (NICT), and builds on previous work involving the NICTs, reaching speeds of 172 terabytes / s, recently announced.

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This feat used a coupled optical fiber to three cores, a technology that transmits data through three fiber optic tubes instead of a single tube as is currently the case, in order to reduce signal distortion over long periods of time. distances. The 319TB speed used similar technology, but with four cores.

Data is sent using a technique called wavelength division multiplexing. It is transmitted by a laser which divides the signals into 552 channels and sends them through the four fiber optic cores.

At distances of 70 kilometers (43.5 miles) along the fiber, amplifiers boost signal strength to minimize transmission losses over long distances. These amplifiers are two new types doped with rare earths thulium and erbium.

Overall, the average data rate per channel was approximately 145 Gbps per core and approximately 580 Gbps for the four cores combined.

A record speed of 319 terabytes was reached on up to 552 wavelength channels.

The team plans to continue working on the long-distance data transmission system, in an attempt to increase the transmission capacity and extend its reach.

The team’s paper was presented at the International Conference on Fiber Optic Communications in June.

Source: Scientific alert

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