Development of SNSPD System With Gifford-McMahon Cryocooler

被引：20

作者：

Miki, Shigehito ^{[1
]}

Fujiwara, Mikio ^{[2
]}

Sasaki, Masahide ^{[2
]}

Wang, Zhen ^{[1
]}

机构：

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

[2] Natl Inst Informat & Commun Technol, Koganei, Tokyo 1848795, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期

关键词：

NbN superconducting films; quantum information communications; single photon detector; superconducting nanowire; SINGLE-PHOTON DETECTORS; NBN;

D O I：

10.1109/TASC.2009.2019027

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A superconducting nanowire single photon detector (SNSPD) system for telecommunication wavelength using a GM cryocooler was developed and its performance was verified. The cryocooler based SNSPD system can operate continuously with a 100 V AC power supply without any cryogen. The packaged SNSPD device was cooled to 2.96 K within a thermal fluctuation range of 10 mK. An SNSPD with an area of 20 x 20 mu m(2) showed good system detection efficiency (DE) at 100 Hz dark count rate of 2.6% and 4.5% at wavelengths of 1550 and 1310 nm, respectively. An SNSPD with an area of 10 x 10 mu m(2) and kinetic inductance lower than that of the large area device showed good system DE of 2.6% at a wavelength of 1550 nm. The SNSPD system could be operated for over 10 h with constant system DE and dark count rate.

引用

页码：332 / 335

页数：4

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