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US researchers report faster fibre optic transmissions

They achieve this by "predistorting" data transmitted via laser beams

An OpenNet fibre optic cable (thin cable in red and blue) used in Singapore.

New York

ONE way to understand a challenge of sending data through fibre-optic circuits is to imagine a person shouting to someone else down a long corridor. As the listener moves farther away, the words become fainter and more difficult to discern as they echo off the walls.