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319 Terabits per Second – Japan broke the Internet Speed Record

Fastest internet speed set by Japanese Engineers.

According to a paper given at the International Conference on Optical Fiber Communications in June, Japanese engineers just broke the global record for the fastest internet speed, attaining a data transfer rate of 319 Terabits per second (Tb/s). The new record was set on a 1,864 mile-long (3,000-kilometer) fiber connection. And, most importantly, it’s compatible with today’s cable infrastructure. 

This new milestone has the potential to transform everything. The importance of this transmission speed cannot be overstated. It’s nearly twice as fast as the previous high of 178 Tb/s, reached in 2020. It’s also seven times faster than the prior record of 44.2 Tb/s, which was accomplished with an experimental photonic chip. The new record ascends unrealistically high beyond what consumers actually can use (the fastest of which is 10 Gb/s for home internet connections). NASA uses a moderately primal speed of 400 Gb/s. 

The latest data transmission technology divides information into several wavelengths. As if the milestone couldn’t get much better, the feat was achieved using already-existing fiber optic connections (but with a few advanced add-ons). Instead of the typical core, the researchers employed four “cores,” which are glass tubes enclosed within the data-transmission fibers. Using a process called wavelength division multiplexing, the signals are split into several wavelengths and delivered simultaneously.

 The researchers used an unusually used third “band” to convey additional data, extending the distance via numerous optical amplification technologies. A 552-channel comb laser shot at distinct frequencies starts the system operation in the new system. This is then conveyed by dual polarization modulation, which causes some wavelengths to arrive ahead of others, resulting in various signal sequences, each of which is directed into one of the optical fiber’s four cores. Data is sent across 43.5 miles (70 kilometers) of optical fiber until it reaches optical amplifiers, which amplify the signal for the lengthy voyage ahead. Moreover, the signal passes via two different types of fiber amplifiers, one coated in thulium and the other in erbium, before proceeding on its route in a typical Raman amplification process.

Reported By: Imaaz Nadeem

Written By: Yashfa Fatima

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