%0 Conference Proceedings
%T High-efficiency multi-element superconducting single-photon detector
%A Moshkova, M. A.
%A Morozov, P. V.
%A Antipov, A. V.
%A Vakhtomin, Y. B.
%A Smirnov, K. V.
%Y Prochazka, I.
%Y Štefaňák, M.
%Y Sobolewski, R.
%Y Gábris, A.
%S Proc. SPIE
%D 2021
%V 11771
%I SPIE
%F Moshkova_etal2021
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1795), last updated on Sat, 03 Jul 2021 17:53:02 -0500
%X We present the result of the creation and investigation of the multi-element superconducting single photon detectors, which can recognize the number of photons (up to six) in a short pulse of the radiation at telecommunication wavelengths range. The best receivers coupled with single-mode fiber have the system quantum efficiency of ⁓85%. The receivers have a 100 ps time resolution and a few nanoseconds dead time that allows them to operate at megahertz counting rate. Implementation of the multi-element architecture for creation of the superconducting single photon detectors with increased sensitive area allows to create the high efficiency receivers coupled with multi-mode fibers and with preserving of the all advantages of superconducting photon counters.
%K PNR SSPD
%K large active area
%K detection efficiency
%R 10.1117/12.2589157
%U https://doi.org/10.1117/12.2589157
%P 2-8