The experiment combines highly spectral efficient wideband optical transmission with an optical fibre guiding 15 spatial modes and the use of specific mode multiplexers. The total capacity of the network has been 1 Petabit per second, corresponding to simultaneous 8K-TV broadcasting for 10 million people.

January 19, 2021

Prysmian Group, Nokia Bell Labs and the National Institute of Information and Communications Technology (NICT) have announced a record-setting 1 Petabit per second transmission over an optical fibre with standard dimensions.

The group of researchers from the Network System Research Institute of the NICT, Nokia Bell Labs, and Prysmian Group’s Optical Fibre Business Unit succeeded in the world’s first space division multiplexed transmission exceeding 1 Petabit per second in a fibre with standard cladding (125µm) and coating (245µm) diameters. This increases the previous data-rate records in fibres with standard dimensions by 5.7 times (single-mode fibre), by 2.5 times (few-mode fibre) and by 1.7 times (multi-core fibre). The results of this study were accepted for the prestigious post-deadline session at the 46th European Conference on Optical Communications (ECOC, December 2020), one of the largest international conferences related to optical fibre communication.

Also Read: Prysmian’s Pikkala Cable Plant to Become Group’s First Net-Zero Factory.

The success of large-capacity transmission using a single-core few-mode fibre, which has a high spatial signal density and is easy to manufacture, is expected to advance high-capacity transmission technology. This could be used in telecom and data networks, from long-reach to short-reach applications, where density and capacity of standard single-mode technology reach a plateau.

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