%0 Journal Article %T Fiber-coupled nanowire photon counter at 1550 nm with 24% system detection efficiency %A Hu, Xiaolong %A Zhong, Tian %A White, James E. %A Dauler, Eric A. Najafi %A Herder, Charles H. %A Wong, Franco N. C. %A Berggren, Karl K. %J Optics Letters %D 2009 %V 34 %N 23 %F Hu_etal2009 %O exported from refbase (https://db.rplab.ru/refbase/show.php?record=679), last updated on Thu, 15 Dec 2011 20:25:42 -0600 %X 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 ~1000 counts/s. %K SNSPD %P 3607-3609