Opto-Electrical Converter Allows Communications Systems to Maintain Stable and Accurate Microwave Signals Over Long Distances

Joe C. Campbell, Lucien Carr III Professor of electrical and computer engineering, developed the photodiode for a research effort led by NIST with the University of Colorado-Boulder. The team discovered how to convert high-performance signals from optical clocks into a microwave signal that can more easily find practical use in modern electronic systems. Their research is published in the May 22, 2020 issue of Science.