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Multitone Waveform Synthesis with a Quantum Voltage Noise Source

Published

Author(s)

Samuel P. Benz, Paul D. Dresselhaus, Charles J. Burroughs

Abstract

We have developed a quantum voltage noise source (QVNS) based on pulse-driven Josephson arrays and optimized its waveform synthesis for use with Johnson noise thermometry (JNT). The QVNS synthesizes multitone waveforms with equal amplitude harmonic tones and random relative phases in order to characterize the amplitude-frequency response of the analog and digital electronics of the JNT system. We describe the QVNS circuit design and operation, including the lumped-array Josephson-junction circuit and the unipolar bias technique. In particular, we describe the primary design considerations that determine the voltage accuracy of the harmonic tones.
Citation
IEEE Transactions on Applied Superconductivity
Volume
21
Issue
3

Keywords

Correlation, Digital-analog Conversion, Josephson Arrays, Johnson Noise, Quantization, Noise Measurement, Thermometry.

Citation

Benz, S. , Dresselhaus, P. and Burroughs, C. (2010), Multitone Waveform Synthesis with a Quantum Voltage Noise Source, IEEE Transactions on Applied Superconductivity, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906298 (Accessed May 23, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created November 9, 2010, Updated February 19, 2017