High performance superconductor single photon detector with enhanced system efficiency at infrared wavelength

Author

Labao Zhang ; Tao Jia ; Min Gu ; Lin Kang ; Guanghao Zhu ; Jian Chen ; Peiheng Wu

Author_Institution

Res. Inst. of Supercond. Electron., Univ. of Nanjing, Nanjing, China

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

Single photon detection technology is a frontier in the field of photon detection. As a newly developed technique, superconductor single photon detector (SSPD) has many attractive advantages such as wide response bandwidth, low noise, and fast speed. In this paper, we experimentally demonstrate a high performance SSPD with large system efficiency and low dark count rate at infrared wavelengths. The devices structure, fabrication process and system performance are presented in details. For our SSPD, we achieve a system efficiency of 60% at 1550 nm with a dark count rate of 100 cps. The time jitter and the maximum repetition rate are also measured to be 46 ps and 50 MHz respectively.

Keywords

infrared detectors; superconducting photodetectors; timing jitter; dark count rate; device structure; efficiency 60 percent; enhanced system efficiency; fabrication process; frequency 50 MHz; infrared wavelength; maximum repetition rate; superconductor single photon detector; system performance; time 46 ps; time jitter; wavelength 1550 nm; Detectors; Fabrication; Films; Photonics; Silicon; Superconducting integrated circuits; Superconducting photodetectors;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929468

Filename

6929468