UCL Department of Electronic and Electrical Engineering


TRANSNET members set new internet speed record

17 August 2020

Working with two companies, Xtera and KDDI Research, the research team led by Dr Lidia Galdino, achieved a data transmission rate of 178 terabits a second – a fifth faster than the previous record.

photo of Lidia Galdino in lab

The team used amplifiers which were custom made to significantly improve how light carries digital data through fibre-optic broadband. The record-breaking speed is three million times faster than the average UK broadband connection – capable of downloading the entire Netflix library in less than a second.

The full paper is published in IEEE Photonics Technology Letters.
Galdino. L, Edwards. A, Yi. W, Sillekens. E, Wakayama. Y, Gerard. T, Pelouch. S. W, Barnes. S, Tsuritani. T, Killey. I. R, Lavery. D, and Bayvel. P  
Optical Fibre Capacity Optimisation via Continuous Bandwidth Amplification and Geometric Shaping (doi.org/10.1109/LPT.2020.3007591).

The work was widely covered by the media – please find below links to the UCL press release as well as coverage by the BBC and the London Evening Standard.

UCL engineers set new world record internet speed.

BBC Digital Planet.

London scientists build 'ultra-broadband nearly three million times faster' than UK home fibre optic internet connections.