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[PLENARY TALK / INVITED] Superconducting electronics: from quantum-accurate sensors to supercomputing

Pascal Febvre

May 29, 20170 citations

[INVITED] Test setup for functional superconducting logic circuits

Pascal Febvre

A test setup bench is being implemented in the laboratory to test digital superconducting circuits under various conditions of operation. I will present in a first step the computer-controlled test environment developed to extract the main parameters of Josephson devices used in digital circuits and to test the circuits at low frequencies. Some results obtained on some Josephson junction arrays and circuits will be shown to illustrate this part. In a second step, I will review the microwave and optical signal feeds and readout that are under development in order to trigger and diagnose digital circuits at higher frequencies. Finally, a study of the expected performance of an on-chip diagnostic system aimed at discriminating different signal waveforms generated by superconducting digital circuits will be presented.A test setup bench is being implemented in the laboratory to test digital superconducting circuits under various conditions of operation. I will present in a first step the computer-controlled test environment developed to extract the main parameters of Josephson devices used in digital circuits and to test the circuits at low frequencies. Some results obtained on some Josephson junction arrays and circuits will be shown to illustrate this part. In a second step, I will review the microwave and optical signal feeds and readout that are under development in order to trigger and diagnose digital circuits at higher frequencies. Finally, a study of the expected performance of an on-chip diagnostic system aimed at discriminating different signal waveforms generated by superconducting digital circuits will be presented.

Nov 29, 20040 citations

Recent advance in superconducting digital electronics

Hisao Hayakawa

應用物理Jan 10, 20030 citations

Superconductor Digital-RF Transceiver Components

Oleg A. Mukhanov, Deepnarayan Gupta, Alan M. Kadin +3 more

Superconductive technology offers unparalleled digital and mixed-signal circuit performance, advancing digital processing from baseband to RF stages. This allows elimination of analog filters and mixers with generally poorly controlled phase performance, causing intersymbol interference limiting an overall communication system performance. HYPRES has been developing superconducting circuit components for application to digital RF communication transceivers. The components include low-pass and band-pass analog-to-digital converters, digital decimation and correlation-based filters, digital up/down-converters, and low-time-jitter clock sources. All of these are based on ultra-fast Rapid Single Flux Quantum (RSFQ) digital circuits, with clock rates up to 20 GHz demonstrated with 3-micron technology, and being scaled to 40 GHz and above. In this paper, we will discuss design and performance of some of these components. 1.Superconductive technology offers unparalleled digital and mixed-signal circuit performance, advancing digital processing from baseband to RF stages. This allows elimination of analog filters and mixers with generally poorly controlled phase performance, causing intersymbol interference limiting an overall communication system performance. HYPRES has been developing superconducting circuit components for application to digital RF communication transceivers. The components include low-pass and band-pass analog-to-digital converters, digital decimation and correlation-based filters, digital up/down-converters, and low-time-jitter clock sources. All of these are based on ultra-fast Rapid Single Flux Quantum (RSFQ) digital circuits, with clock rates up to 20 GHz demonstrated with 3-micron technology, and being scaled to 40 GHz and above. In this paper, we will discuss design and performance of some of these components. 1.

Jan 1, 20067 citations

Superconducting Digital Electronics: from SPICE models to simulations

Pascal Febvre

Feb 19, 20180 citations

Superconductor digital electronics technology for sensor interfacing at the FLUXONICS Foundry

J. Kunert, Oliver Brandel, S. Linzen +3 more

The integration of superconductor digital electronics together with superconducting sensors can enable smart multi-channel sensor arrays. Applications of such sensors range from basic astrophysical research to advanced security screening devices. The main advantage of superconducting sensor interfaces is the very low power consumption in combination with a very low noise level; both are required in order to keep the excellent superconducting sensor performance without distortions. The FLUXONICS Foundry technology has been optimized with respect to electronic interfaces circuits for analogue sensor readout and signal multiplexing. In this work, we describe this new interface technology and present a comparison with our standard RSFQ technology.The integration of superconductor digital electronics together with superconducting sensors can enable smart multi-channel sensor arrays. Applications of such sensors range from basic astrophysical research to advanced security screening devices. The main advantage of superconducting sensor interfaces is the very low power consumption in combination with a very low noise level; both are required in order to keep the excellent superconducting sensor performance without distortions. The FLUXONICS Foundry technology has been optimized with respect to electronic interfaces circuits for analogue sensor readout and signal multiplexing. In this work, we describe this new interface technology and present a comparison with our standard RSFQ technology.

IEEE Workshop on Low Temperature Electronics (WOLTE)Jul 1, 20141 citation

[INVITED] Recent advances in the design of digital and mixed-signal superconducting circuits and sensors

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