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PUBLICATIONS

Measuring VHF Detector Linearity using a Quantum-Based Source

Published

Author(s)

Jeremy Thomas, Nathan Flowers-Jacobs, Anna Fox, Alain Rufenacht, Paul Dresselhaus

Abstract

We demonstrate the use of a Josephson Arbitrary Waveform Synthesizer (JAWS) for linearity measurements of two instruments: an RF power sensor and a fast ADC. The VHF-JAWS source consists of a chip with 12,810Josephson junctions located in a cryocooler and driven to produce quantum-based ac waveforms at frequencies up to 50.05 MHz and power up to -19 dBm. We first confirm that the device is operating correctly by measuring the dc bias current quantum-locking range and then measure the system output power with an RF power sensor and a high-speed digitizer. After removing an overall scale factor, the ten-nanowatt scale differences between the programmed JAWS values and the measured values indicate better than ±0.5 % DUT linearity for frequencies in the VHF band.
Conference Dates
July 6-11, 2024
Conference Location
Denver, CO, US
Conference Title
2024 Conference on Precision Electromagnetic Measurements (CPEM)
Pub Type
Conferences

Download Paper

https://doi.org/10.1109/CPEM61406.2024.10646166
Local Download

Keywords

Josephson junction arrays, power measurement standards, digital-analog conversion, signal synthesis, superconducting integrated circuits, superconducting microwave devices
Superconducting electronics and Electrical / electromagnetic metrology

Citation

Thomas, J. , Flowers-Jacobs, N. , Fox, A. , Rufenacht, A. and Dresselhaus, P. (2024), Measuring VHF Detector Linearity using a Quantum-Based Source, 2024 Conference on Precision Electromagnetic Measurements (CPEM), Denver, CO, US, [online], https://doi.org/10.1109/CPEM61406.2024.10646166, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=957413 (Accessed October 7, 2025)

Issues

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Created August 30, 2024, Updated December 9, 2024
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