PT Journal
AU Dauler, E
   Kerman, A
   Robinson, B
   Yang, J
   Voronov, B
   Goltsman, G
   Hamilton, S
   Berggren, K
TI Photon-number-resolution with sub-30-ps timing using multi-element superconducting nanowire single photon detectors
SO J. Modern Opt.
JI J. Modern Opt.
PY 2009
BP 364
EP 373
VL 56
IS 2
DI 10.1080/09500340802411989
DE PNR SSPD; SNSPD; photon-number-resolution; superconducting nanowire single photon detector; timing jitter; system detection efficiency
AB A photon-number-resolving detector based on a four-element superconducting nanowire single photon detector is demonstrated to have sub-30-ps resolution in measuring the arrival time of individual photons. This detector can be used to characterize the photon statistics of non-pulsed light sources and to mitigate dead-time effects in high-speed photon counting applications. Furthermore, a 25% system detection efficiency at 1550 nm was demonstrated, making the detector useful for both low-flux source characterization and high-speed photon-counting and quantum communication applications. The design, fabrication and testing of this detector are described, and a comparison between the measured and theoretical performance is presented.
ER