Progress Toward a 1 V Pulse-Driven AC Josephson Voltage Standard

Benz, Samuel P.; Dresselhaus, Paul D.; Rüfenacht, Alain; Bergren, Norman F.; Kinard, J.R.; Landim, Regis Pinheiro

doi:10.1109/tim.2008.2007019

Cited by 51 publications

(30 citation statements)

References 10 publications

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“…Future research is necessary to improve the frequency characteristic. At present, the ACJVS output voltage is limited to about 300 mV only [2][3][4]. We expect that future research will lead to ACJVS systems generating higher voltages, such that both the frequency and the voltage at which the ACJVS excels thermal converters based artifact standards will increase.…”

Section: Discussionmentioning

confidence: 99%

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International comparison of quantum AC voltage standards for frequencies up to 100kHz

2012

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Section: Discussionmentioning

confidence: 99%

“…The latter approach, first developed by NIST [1], has a much wider frequency limit, between 1 kHz and 1 MHz, but at a lower voltage. NIST state of the art arrays can generate up to 300 mV rms voltage when two arrays are connected in series [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

International comparison of quantum AC voltage standards for frequencies up to 100kHz

2012

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“…Two of these arrays are contained on the surface of a microchip with an area of 1 cm 1 cm. Together they can produce a waveform having a total RMS voltage difference of 275 mV [14]. For the measurements described in the following sections, we programmed the JAWS to produce two-tone waveforms with each tone having a magnitude of precisely 100 RMS.…”

Section: A Quantum Accurate Synthesizermentioning

confidence: 99%

Nonlinear Behavior of Electronic Components Characterized With Precision Multitones From a Josephson Arbitrary Waveform Synthesizer

Toonen

Benz

2009

IEEE Trans. Appl. Supercond.

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We have extended the application of quantum-based electrical standards from single frequency calibrations to multi-tone tests that can be used to characterize the nonlinear behavior of electronic components and circuits. Specifically, we have used a Josephson arbitrary waveform synthesizer to generate highly accurate, two-tone waveforms having center frequencies ranging from 10 kHz to 1 MHz. These waveforms have unprecedented spectral purity because they are constructed from perfectly quantized voltage pulses. Using this measurement system, we have characterized the intermodulation distortion properties of a highly linear amplifier used in metrological applications. Additionally, we have shown that these test signals can be upconverted to microwave frequencies, so that they may be used to characterize the nonlinearities of RF and microwave components.

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“…The largest rms output voltage achieved to date by a JAWS system is 275 mV, which was produced by summing the voltage of two separately biased Josephson arrays [29]. Recently presented results have doubled the maximum rms output voltage for a single array to 250 mV.…”

Section: Introductionmentioning

confidence: 96%

One-Volt Josephson Arbitrary Waveform Synthesizer

Benz

Waltman²,

Fox

et al. 2015

IEEE Trans. Appl. Supercond.

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A quantum-accurate waveform with an rms output amplitude of 1 V has been synthesized for the first time. This fourfold increase in voltage over previous systems was achieved through developments and improvements in bias electronics, pulse-bias techniques, Josephson junction array circuit fabrication, and packaging. A recently described ac-coupled bipolar pulse-bias technique was used to bias a superconducting integrated circuit with 25 600 junctions, which are equally divided into four series-connected arrays, into the second quantum state. We describe these advancements and present the measured 1 V spectra for 2 Hz and 10 Hz sine waves that remained quantized over a 0.4 mA current range. We also demonstrate a 2 kHz sine wave produced with another bias technique that requires no compensation current and remains quantized at an rms voltage of 128 mV over a 1 mA current range. Increasing the clock frequency to 19 GHz also allowed us to achieve a maximum rms output voltage for a single array of 330 mV.

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Progress Toward a 1 V Pulse-Driven AC Josephson Voltage Standard

Cited by 51 publications

References 10 publications

International comparison of quantum AC voltage standards for frequencies up to 100kHz

International comparison of quantum AC voltage standards for frequencies up to 100kHz

Nonlinear Behavior of Electronic Components Characterized With Precision Multitones From a Josephson Arbitrary Waveform Synthesizer

One-Volt Josephson Arbitrary Waveform Synthesizer

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