Development of SNSPD System With Gifford-McMahon Cryocooler

Author

Miki, Shigehito ; Fujiwara, Mikio ; Sasaki, Masahide ; Wang, Zhen

Author_Institution

Nat. Inst. of Inf. & Commun. Technol., Kobe Adv. Res. Center, Kobe, Japan

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

332

Lastpage

335

Abstract

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 times 20 mum² 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 times 10 mum² 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.

Keywords

nanoelectronics; nanowires; superconducting photodetectors; AC power supply; Gifford-McMahon cryocooler; dark count rate; detection efficiency; frequency 10 Hz; kinetic inductance; superconducting nanowire single photon detector system; telecommunication wavelength; thermal fluctuation; voltage 100 V; wavelength 1310 nm; wavelength 1550 nm; NbN superconducting films; quantum information communications; single photon detector; superconducting nanowire;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2019027

Filename

5153058