Superconducting nanowire single photon detection system for space applications
Lixing You, Jia Quan, yong Wang, Yuexue Ma, Xiaoyan Yang, Yanjie Liu,, Hao Li, Jianguo Li, Juan Wang, Jingtao Liang, Zhen Wang, Xiaoming Xie
TL;DR
This paper presents a space-compatible superconducting nanowire single photon detector system using a hybrid cryocooler, achieving over 50% efficiency at 2.8 K, enabling space-based quantum and communication technologies.
Contribution
The work introduces a novel SNSPD system designed for space applications with a compatible cryocooler, overcoming previous ground-based limitations.
Findings
Detection efficiency over 50%
Operational temperature of 2.8 K
Timing jitter of 48 ps
Abstract
Superconducting nanowire single photon detectors (SNSPDs) have advanced various frontier scientific and technological fields such as quantum key distribution and deep space communications. However, limited by available cooling technology, all past experimental demonstrations have had ground-based applications. In this work we demonstrate a SNSPD system using a hybrid cryocooler compatible with space applications. With a minimum operational temperature of 2.8 K, this SNSPD system presents a maximum system detection efficiency of over 50% and a timing jitter of 48 ps, which paves the way for various space applications.
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