%0 Journal Article
%T Ultrafast superconducting single-photon detector with a reduced active area coupled to a tapered lensed single-mode fiber
%A Sidorova, Maria V.
%A Divochiy, Alexander V.
%A Vakhtomin, Yury B.
%A Smirnov, Konstantin V.
%J J. Nanophoton.
%D 2015
%V 9
%N 1
%@ 1934-2608
%F Sidorova_etal2015
%O 10.1117/1.JNP.9.093051
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1052), last updated on Tue, 04 May 2021 19:02:57 -0500
%X This paper presents an ultrafast niobium nitride (NbN) superconducting single-photon detector (SSPD) with an active area of 3×3  μm2 that offers better timing performance metrics than the previous SSPD with an active area of 7×7  μm2. The improved SSPD demonstrates a record timing jitter (<25  ps), an ultrashort recovery time (<2  ns), an extremely low dark count rate, and a high detection efficiency in a wide spectral range from visible part to near infrared. The record parameters were obtained due to the development of a new technique providing effective optical coupling between a detector with a reduced active area and a standard single-mode telecommunication fiber. The advantages of the new approach are experimentally confirmed by taking electro-optical measurements.
%K SSPD
%K SNSPD
%R 10.1117/1.JNP.9.093051
%U https://doi.org/10.1117/1.JNP.9.093051
%P 093051