TITLE

Demonstration of single-flux-quantum readout operation for superconducting single-photon detectors

AUTHOR(S)
Terai, Hirotaka; Miki, Shigehito; Yamashita, Taro; Makise, Kazumasa; Zhen Wang
PUB. DATE
September 2010
SOURCE
Applied Physics Letters;9/13/2010, Vol. 97 Issue 11, p112510
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A readout circuit using superconducting single-flux-quantum (SFQ) circuits has been developed to realize an independently addressable array of superconducting single-photon detectors (SSPDs). We tested the SFQ readout circuits by connecting with SSPDs. The error rates of readout circuits were below 10-5 for input signal amplitude of greater than 18.2 μA. Detection efficiencies (DEs) for single-photon incidents were measured both with and without the connection of a readout circuit. The observed DEs traced almost the same curves regardless of the connection of the readout circuit, except that the SSPD is likely to latch by connecting the readout circuit.
ACCESSION #
53768651

 

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