Highest data transmission rate over hollow-core optical fibre

According to Official Guinness Records,

The highest data transmission rate over hollow-core optical fibre is 73.7 Tb/s, which was achieved by engineers from Coriant R&D GmbH in their tests as part of the MODE-GAP programme, and published in the Journal of Lightwave Technology on 15 February 2014.
Hollow-core optical fibre is a proposed solution to the 'capacity crunch', when it's expected that the current data carrying capacity of solid-core optical fibres will be insufficient to meet the world's insatiable appetite for data capacity.

For a complete list of 2014 records, please visit 2014 Guinness Records in Germany.

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