Purdue University researchers have developed a miniature silicon-based device capable of transmitting 60 gigahertz radio-frequency signals, a step toward making wires obsolete for communications in the homes and offices of the future.

To achieve this extremely high frequency, the device uses silicon “microring resonators” in a system that converts ultrafast digital laser pulses into bursts of analog radio-frequency signals, replacing large “bulk optics” systems.

The device could enable all communications, from high-definition television broadcasts to secure computer connections, to be transmitted from a single base station.

Diagram showing design of microring resonators (Purdue University, Minghao Qi)

Further information: Purdue University news release