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Optical fiber with data rate up to 255 Tbps

09.11.2014

A team of scientists from the Netherlands, China and the United States presented a new development - optical fiber, which allows you to transfer data at speeds up to 255 Tbps.

The resulting material has a bandwidth that is 21 times higher than the performance of the best modern optical cables (for them it is 7-8 Tbps). The benefit of the achievement can hardly be overestimated, because, according to research results, with the development of technology, the need to increase the speed of information transfer increases exponentially.

At the same time, the transmission of significant amounts of data in an optical fiber is limited by losses, which are explained by deviations from the laws of linear optics. Such deviations occur due to the high energy of the light wave.

In conventional optical fiber, the core is a cylinder of glass or plastic that runs the entire length of the cable. Such a core is surrounded by a medium, the optical properties of which do not allow light to go beyond its limits.

According to scientists, they managed to use not one core, but as many as seven. In addition, two additional dimensions were introduced in the new fiber.

In addition, scientists have applied a technology that allows you to use several frequency channels in one fiber. In this case, each of the channels carries separate information. It is reported that the diameter of the fiber did not change much as a result.

Scientists compare their improvement with a multi-lane road, in contrast to a single-lane road (optical fiber with one core). As for the two additional dimensions, we can illustrate them with a situation where three cars run into each other while in the same lane.

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