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Three Volt Pulse-Driven Josephson Arbitrary Waveform Synthesizer

Published

Author(s)

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

Abstract

This paper describes a new generation of Josephson Arbitrary Waveform Synthesizers which generate ac waveforms with a root-mean-squared (rms) amplitude of 3 V over a quantum-accurate operating range greater than 1 mA at 1 kHz. This system is composed of two chips with a total of 204 960 Josephson junctions (JJs) co-located at 4.6 K on a cryocooler. To test for systematic errors in the system, we generate a null voltage by shifting the phase of the waveform generated by half the JJs by 180°. The measured residual rms amplitude of 51 NV implies that the two halves of the system can create voltages with an rms magnitude of 1.5 V which match to 3 parts in 1e8.
Proceedings Title
2018 Conference on Precision Electromagnetic Measurements
Conference Dates
July 8-13, 2018
Conference Location
Paris, FR

Keywords

Digital-analog conversion, Josephson junction arrays, measurement standards, signal synthesis, superconducting integrated circuits, voltage measurement

Citation

Flowers-Jacobs, N. , Rufenacht, A. , Fox, A. , Waltman, S. , Brevik, J. , Dresselhaus, P. and Benz, S. (2018), Three Volt Pulse-Driven Josephson Arbitrary Waveform Synthesizer, 2018 Conference on Precision Electromagnetic Measurements, Paris, FR, [online], https://doi.org/10.1109/CPEM.2018.8501053, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925124 (Accessed April 16, 2024)
Created July 7, 2018, Updated April 12, 2022