Optical fibre transmission world record is doubled to 22.9 petabits per second

Researchers from the National Institute of Information and Communications Technology (NICT), in collaboration with the Eindhoven University of Technology and University of L’Aquila has demonstrated a record-breaking data-rate of 22.9 petabits per second using only a single optical fibre, which was more than double the previous world record of 10.66 petabits per second.

image: conceptual image of the ultralarge-capacity optical fiber transmission in this study

To put that number into perspective, a petabit is one million gigabits, fast enough to transmit the entire internet’s second-by-second traffic 22 times over with bandwidth left over.

Using a multi-band-compatible MIMO receiver, researchers successfully combined multi-band WDM (Wavelength Division Multiplexed) and multi-core, multi-mode SDM (Space Division Multiplexing) for the first time.

The achieved data-rate includes an overhead for an implemented forward-error correction code with the demonstration showing up to 24.7 Pb/s can be achieved with better optimised coding. This is more than 1,000 times the data-rate of currently deployed optical fibre communication systems.

While uncoupled four-core MCF is suitable for early adaptation, further improvement of the telecommunication infrastructure using ultra-large-capacity optical fibres will be needed in the future, where the data traffic demand is expected to increase by 3 orders of magnitude (x1,000 times).

This study demonstrates the first successful combination of multi-band WDM and SDM employing a multicore multimode fiber, which is key to the realisation of future ultra-large-capacity optical fibre communication networks.

Article Categories

Most Viewed