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The absolute world record for data transmission on the Internet was set


UCL Electronic & Electrical Scientist TeamEngineering (University College London), working together with developers from Xtera and KDDI Research, were able to provide the world's fastest data transfer rate on modern equipment. The new record speed is 178 TB / s, which is almost 20% higher than the previous maximum. For clarity, the developers claim that this speed will allow you to transfer the entire Netflix movie library in less than one second.

Currently, the "fastest" operatingthe world's networks are at the disposal of NASA and show data transfer rates of about 400 Gb / s. The previous record high data transfer rate was reached in Japan at 150 TB / s, which is almost one-fifth below the new achievement of the research team at UCL.

High data transfer rates wereachieved on existing equipment by introducing a new light modulation methodology, which allows to increase the amount of data transmitted through fiber. The operation of traditional fiber-optic cables realizes a bandwidth of 4.5 THz, and only in exceptional cases, increasing this value to 9 THz. The technology offered by scientists from UCL will expand the range to 16.8 THz.

To implement the method, the researchers combinedvarious amplifier technologies needed to increase signal power over a wider bandwidth and maximum speed by developing new signal combination patterns using the phase, brightness and polarization properties of light.

The main advantage of this method isthe ability to deploy technology on existing infrastructure with minimal changes. On fiber optic cable routes, it is only required to upgrade amplifiers located at intervals of 40-100 km. According to scientists, modernization will be almost 30 times cheaper than laying new cable lines. The developers also note that the achieved data transfer rate is close to the theoretical data transfer limit set by the American mathematician Claude Shannon in 1949.

Source: ucl