TY  - JOUR
AU  - Sidorova, Maria V.
AU  - Divochiy, Alexander V.
AU  - Vakhtomin, Yury B.
AU  - Smirnov, Konstantin V.
PY  - 2015
DA  - 2015//
TI  - Ultrafast superconducting single-photon detector with a reduced active area coupled to a tapered lensed single-mode fiber
JO  - J. Nanophoton.
SP  - 093051
VL  - 9
IS  - 1
KW  - SSPD
KW  - SNSPD
AB  - 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.
SN  - 1934-2608
UR  - https://doi.org/10.1117/1.JNP.9.093051
DO  - 10.1117/1.JNP.9.093051
N1  - 10.1117/1.JNP.9.093051
ID  - Sidorova_etal2015
ER  -