The researchers sent video signals using terahertz, rather than traditional microwaves, at speeds of 50 gigabytes per second. Most wireless networks only operate at top speeds of 500 megabytes a second.

The breakthrough could lead to high-speed streaming on the go.

"We showed that we can transmit separate data streams on terahertz waves at very high speeds and with very low error rates," said Daniel Mittleman, a professor in Brown University's School of Engineering, in Providence, US.

"This is the first time anybody has characterized a terahertz multiplexing system using actual data, and our results show that our approach could be viable in future terahertz wireless networks."