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Publication Citation: Operating Margins for a Pulse-Driven Josephson Arbitrary Waveform Synthesizer Using a Ternary Bit-Stream Generator

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Author(s): Ernest Houtzager; Samuel P. Benz; Helko vanden Brom;
Title: Operating Margins for a Pulse-Driven Josephson Arbitrary Waveform Synthesizer Using a Ternary Bit-Stream Generator
Published: April 01, 2009
Abstract: We describe measurements with a pulse-driven Josephson arbitrary waveform synthesizer (JAWS) that uses a ternary arbitrary bit-stream generator as the bias source. This system is meant to be used as an AC Josephson voltage standard (ACJVS). From these measurements we conclude that the system is operational for root-mean-square voltages up to 220 mV. We measured the operating margins for different voltages synthesized with different numbers of junctions, waveforms, and bias conditions. We also present results on the influence of the critical current on the operating margins.
Citation: IEEE Transactions on Instrumentation and Measurement
Volume: 58
Issue: 4
Pages: pp. 775 - 780
Keywords: Digital-to-analog conversion, Josephson arrays, Signal synthesis, Superconductor-normal-superconductor devices, voltage measurement, AC voltage standard
Research Areas: Quantum Electrical Measurements, Superconducting Electronics
PDF version: PDF Document Click here to retrieve PDF version of paper (164KB)