Researchers in Japan have just set an astonishing new speed record for data transfers

Researchers in Japan have just set an astonishing new speed record for data transfers

Image of the article titled Only researchers in Japan have set an astonishing new speed record for data transfers

Although high-speed wireless technologies such as Wi-Fi 6E And 5G is dominating the headlines, and analog and optical cables are still the backbone of the internet, and for good reason. Researchers in Japan have just mapped a file New record for optical fiber data transmission technology Compatible with existing cabling infrastructurewhich means that real-world implementation is entirely possible, and not just limited to a lab environment.

researchers from Japan National Institute of Information and Communication Technology (NICT) successfully transmitted data over a dedicated multi-core fiber optic cable at 1.02 petabits per second over a distance of 51.7 km. This equates to sending 127,500 gigabytes of data every second, which, according to the researchers, is also enough capacity for more than “10 million 8K channels per second.” as such New Atlas points out, This is also 100,000 times faster than the promised next generation of high-speed gigabit connections that provide internet to home users.

In December of 2020, NICT actually The first successful data transfer of 1 petabit per second over a standard diameter fibre-optic cable, and while the speed improvement to 1.02 petabits per second after a year and a half is certainly an impressive feat, what makes this time so exciting is the technology used to break the record.

In 2020, NICT researchers sent data over a single-core fiber-optic cable, but used multi-mode technology where multiple signals were mixed together during transmission. In total, 15 “modes” were sent down the fibers together, and while the speed achievements were impressive, multimode technology required special hardware to decode signals and extract usable data, requiring the development and deployment of new integrated circuits across the entire network and expensive upgrades, which It makes it more difficult to sell to ISPs despite the massive bandwidth gain.

This time around, the researchers ditched the multi-mode mixed-signal approach and instead reduced the transmission to just four “modes” that each sent one of four cores inside a custom-made, standard-diameter fiber-optic cable. Imagine a plastic straw with four thinner straws stuffed inside each with a different flavor of soda: an overall simplification of what the researchers devised. But multicore cable wasn’t the only innovation that made this modular data transmission possible, it also relied on some high-tech optical amplification systems and signal modulation methods, as NICT researchers describe:

In this experiment, by extending the bandwidth of Raman amplification to the full S-band and using dedicated S-band thulium-doped fiber amplifiers (TDFAs) and extended-band L-band erbium-doped fiber amplifiers (EDFAs), we were able to use a standard optical spectrum of 20 THz with a total of 801 x 25 GHz divergent wavelength channels, each with 256 QAM dual-modulation polarization for high spectral density in all wavelength ranges.

The most important part is that this second hack relies on devices and technologies that are fully compatible with conventional transceivers already in place across the country. You will need to install new fiber optic cables, but as the researchers have sized their multi-core cables to standard dimensions, this will be necessary. Being fully compatible with existing infrastructure, significantly reducing upgrade costs. As 5G networks become more widespread, and with 6G looming, the country’s demand for data will continue to increase by leaps and bounds, but innovation like this promises to give ISPs a head start for at least a few years.

2022-06-02 14:55:00

Leave a Comment

Your email address will not be published.