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Development and Applications of a Four-Volt Josephson Arbitrary Waveform Synthesizer

Published

Author(s)

Nathan E. Flowers-Jacobs, Alain Rufenacht, Anna E. Fox, Steven B. Waltman, Robert E. Schwall, Justus A. Brevik, Paul D. Dresselhaus, Samuel P. Benz

Abstract

We have recently created a 4 V rms cryocooled JAWS (Josephson Arbitrary Waveform Synthesizer) using 204,960 nearly identical Josephson junctions (JJs) that are embedded in coplanar-wave guides. The JJs are pulse-biased at repetition rates up to 16 × 109 pulses per second to create quantum-accurate, calculable AC waveforms at frequencies from DC to greater than 1 MHz. This system has metrological applications including in precision ac voltage calibrations, comparisons of arbitrary impedances, and ac power measurements.
Proceedings Title
Proceedings of the 2019 IEEE International Superconductive Electronics Conference (ISEC)
Conference Dates
July 28-August 1, 2019
Conference Location
Riverside, CA
Conference Title
2019 IEEE International Superconductive Electronics Conference (ISEC)

Keywords

Metrology, digital-to-analog conversion, Josephson junction arrays, measurement standards, signal synthesis, superconducting integrated circuits, voltage measurement

Citation

Flowers-Jacobs, N. , Rufenacht, A. , Fox, A. , Waltman, S. , Schwall, R. , Brevik, J. , Dresselhaus, P. and Benz, S. (2020), Development and Applications of a Four-Volt Josephson Arbitrary Waveform Synthesizer, Proceedings of the 2019 IEEE International Superconductive Electronics Conference (ISEC), Riverside, CA, [online], https://doi.org/10.1109/ISEC46533.2019.8990937 (Accessed July 6, 2022)
Created February 13, 2020, Updated June 5, 2020