Crosstalk-free operation of multi-element SSPD array integrated with SFQ circuit in a 0.1 Watt GM cryocooler

Taro Yamashita; Shigehito Miki; Hirotaka Terai; Kazumasa Makise; Zhen Wang

Crosstalk-free operation of multi-element SSPD array integrated with SFQ circuit in a 0.1 Watt GM cryocooler

Optics 2012-07-18 v1 Superconductivity

Authors: Taro Yamashita , Shigehito Miki , Hirotaka Terai , Kazumasa Makise , Zhen Wang

Abstract

We demonstrate the successful operation of a multi-element superconducting nanowire single-photon detector (SSPD) array integrated with a single-flux-quantum (SFQ) readout circuit in a compact 0.1 W Gifford-McMahon cryocooler. A time-resolved readout technique, where output signals from each element enter the SFQ readout circuit with finite time intervals, revealed crosstalk-free operation of the four-element SSPD array connected with the SFQ readout circuit. The timing jitter and the system detection efficiency were measured to be 50 ps and 11.4%, respectively, which were comparable to the performance of practical single-pixel SSPD systems.

Keywords

superconducting nanowire single-photon detector SSPD array single-flux-quantum circuit SFQ readout crosstalk-free operation Gifford-McMahon cryocooler timing jitter detection efficiency

Cite

@article{arxiv.1207.3902,
  title  = {Crosstalk-free operation of multi-element SSPD array integrated with SFQ circuit in a 0.1 Watt GM cryocooler},
  author = {Taro Yamashita and Shigehito Miki and Hirotaka Terai and Kazumasa Makise and Zhen Wang},
  journal= {arXiv preprint arXiv:1207.3902},
  year   = {2012}
}

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4 pages, 3 figures

Crosstalk-free operation of multi-element SSPD array integrated with SFQ circuit in a 0.1 Watt GM cryocooler

Abstract

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