Power splitter for terahertz waves may enable faster data transfer

One of the most basic components of any communications network is a power splitter that allows a signal to be sent to multiple users and devices. Researchers from Brown University have now developed just such a device for terahertz radiation — a range of frequencies that may one day enable data transfer up to 100 times faster than current cellular and Wi-Fi networks.
The device could have numerous applications, including as a component in terahertz routers that would send data packets to multiple computers, just like the routers in current Wi-Fi networks.

https://news.brown.edu/articles/2016/06/splitter