PT Unknown
AU Moshkova, M
   Morozov, P
   Divochiy, A
   Vakhtomin, Y
   Smirnov, K
TI Large active area superconducting single photon detector
SE J. Phys.: Conf. Ser.
PY 2019
BP 012139
VL 1410
DI 10.1088/1742-6596/1410/1/012139
DE SSPD; SNSPD
AB We present development of large active area superconducting single-photon detectors well coupled with standard 50 μm-core multi-mode fiber. The sensitive area of the SSPD is patterned using the photon-number-resolving design and occupies an area of 40×40 μm2. Using this approach, we have obtained excellent specifications: system detection efficiency of 47% measured using a 900 nm laser and low dark count rate of 100 cps. The main advantages of the approach presented are a very short dead time of the detector of 22 ns and FWHM jitter value of about 130 ps.
ER