Fiber-coupled nanowire photon counter at 1550 nm with 24% system detection efficiency.
We developed a fiber-coupled superconducting nanowire single-photon detector system in a close-cycled cryocooler and achieved 24% and 22% system detection efficiencies at wavelengths of 1550 and 1315 nm, respectively. The maximum dark count rate was approximately 1000 counts/s.
Hu
Xiaolong
X
Research Laboratory of Electronics, Massachusetts Institute of Technology,77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA. xlhu@mit.edu
Zhong
Tian
T
White
James E
JE
Dauler
Eric A
EA
Najafi
Faraz
F
Herder
Charles H
CH
Wong
Franco N C
FN
Berggren
Karl K
KK