World Record Broken in Data Transfer

Researchers have set a data transfer record using only a chip and a laser. The technology consumes significantly less energy.

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Here is the Data Transfer Speed

An international team of researchers from the Technical University of Denmark and the Swedish Chalmers University of Technology in Gothenburg have demonstrated for the first time that data can be transmitted at speeds exceeding 1 Pbit/s using a single laser. Using the new technology, the scientists achieved speeds of 1.8 Pbps. This is twice the total global Internet traffic.

The source is a specially designed optical chip that uses light from a single infrared laser to create an iridescent spectrum in many colors. The conversion is performed by an optical source with a frequency comb based on a silicon nitride ring resonator. Thus, light with one wavelength can be used to generate multiple waves at different frequencies.

Scientists explain that all the colors produced are fixed in frequency at a certain distance from each other - like teeth on a comb - which is why it is called a frequency comb. Each color (or frequency) can then be isolated and used to "record" the data. After that, all the data is combined into a single beam, which is transmitted again over an optical fiber.

An experimental demonstration showed that a single chip producing 223 different wavelengths could easily transmit 1.8 Pbps. In contrast, using modern equipment, this requires more than a thousand lasers. The scientists add that the optimized chip will reduce electricity consumption and reduce the impact of the Internet and other communication networks on climate change.

The researchers emphasize that the value reached is not the limit. Computer simulations show that by scaling up the new chip, it is possible to transmit up to 100 Pbit per second using a single laser. The researchers will continue to work on improving their technology.