Researchers reach data transfer rates of 100 terabits / sec

I remember the fastest connection to the network in the world - an elderly Swede. A 75-year-old grandmother can use all the advantages of broadband access, since her Internet connection is fast enough to use all the advantages of the Global Network - 40 Gbit / s is enough for any task. True, an ordinary user can only dream of such a channel width. This woman was lucky - her son is Peter Lotberg, a Cisco employee. However, even such a high-speed connection is nothing compared to the achievements of two independent groups of researchers from the United States and Japan, who were able to set a new world record for the speed of data transmission - 100 terabits per second.

So far, such a record has been set in the laboratory, however, it is clear that such an achievement will be tried to be transferred to commercial rails as quickly as possible. The first group of researchers representing the NEC company used well-known methods of “packing” data using laser beams of different spectra, with different amplitudes and phases of radiation. All this allows you to "pack" a huge amount of information, transmitting over a single fiber with great speed.
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One of the developers, Dayou Qian, reported at a Los Angeles Optical Fiber Communications conference about data transfer at a speed of 101.7 terabits per second over a distance of 165 kilometers. His team achieved this result using 370 individual laser beams using the data “packing” methods mentioned above. Each beam was strictly limited in spectrum, in addition, different polarities, phases and amplitudes of light waves were used to encode data packets.

The Japanese Jun Sakaguchi, representing the Tokyo National Institute of Information and Communication Technologies, spoke at the same conference. The Japanese also reported on reaching the 100-terabit threshold, only a team of researchers from Japan used a different data transfer method. The Japanese used a fiber optic core consisting of 7 separate fibers, each of which provided data transmission at a rate of 15.6 terabits per second. Thus, the total throughput of such a core is 109.2 terabits per second.

Researchers report that both methods are difficult to implement under normal conditions, and most likely, according to NEC representatives, at first this method of data transfer will be used by large companies in data centers.

Via newscientist