High performance fiber-coupled NbTiN superconducting nanowire single photon detectors with Gifford-McMahon cryocooler

被引：156

作者：

Miki, Shigehito ^{[1
]}

Yamashita, Taro ^{[1
]}

Terai, Hirotaka ^{[1
]}

Wang, Zhen ^{[1
]}

机构：

[1] Natl Inst Informat & Commun Technol, Adv ICT Res Inst, Nishi Ku, Kobe, Hyogo 6512492, Japan

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 08期

关键词：

QUANTUM KEY DISTRIBUTION; SYSTEM; EFFICIENCY;

D O I：

10.1364/OE.21.010208

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present high performance fiber-coupled niobium titanium nitride superconducting nanowire single photon detectors fabricated on thermally oxidized silicon substrates. The best device showed a system detection efficiency (DE) of 74%, dark count rate of 100 c/s, and full width at half maximum timing jitter of 68 ps under a bias current of 18.0 mu A with a practical Gifford-McMahon cryocooler system. We also introduced six detectors into the cryocooler and confirmed that the system DE of all detectors was higher than 67% at the dark count rate of 100 c/s. (C) 2013 Optical Society of America

引用

页码：10208 / 10214

页数：7

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