Traceability of high-speed electrical waveforms at NIST, NPL, and PTB

Instruments for measuring high-speed waveforms typically require calibration to obtain accurate results. The national metrology institutes of the United States of America, the United Kingdom, and Germany offer measurement services based on electro-optic sampling that can be used to establish a traceable calibration chain between high-speed waveform measurements and the SI. These services are increasingly switching to a full waveform metrology paradigm, obtaining an estimate of the central value and associated uncertainty of the entire waveform as a function of time.