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Superconducting Qubits

Single-channel electronic readout of a multipixel superconducting nanowire single photon detector

arXiv

Authors: Johannes Tiedau, Timon Schapeler, Vikas Anant, Helmut Fedder, Christine Silberhorn, Tim J. Bartley

Year

2019

Paper ID

14864

Status

Preprint

Abstract Read

~2 min

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Abstract

We present a time-over-threshold readout technique to count the number of activated pixels from an array of superconducting nanowire single photon detectors (SNSPDs). This technique maintains the intrinsic timing jitter of the individual pixels, places no additional heatload on the cryostat, and retains the intrinsic count rate of the time-tagger. We demonstrate proof-of-principle operation with respect to a four-pixel device. Furthermore, we show that, given some permissible error threshold, the number of pixels that can be reliably read out scales linearly with the intrinsic signal-to-noise ratio of the individual pixel response.

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We present a time-over-threshold readout technique to count the number of activated pixels from an array of superconducting nanowire single photon detectors (SNSPDs).

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1911.04880 [2] arXiv https://arxiv.org/abs/1911.04880 [3] Publisher https://arxiv.org/abs/1911.04880

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