Cryogenic Signal Processing based on Single-Flux-Quantum Circuit for Advanced Superconducting Nanostrip Single-Photon Detector Systems
Shigeyuki Miyajima, Hirotaka Terai, Masahiro Yabuno +2 more
A single-flux-quantum circuit is a promising device for a cryogenic signal processor for a superconducting nanostrip single photon detector （SNSPD） due to its high-speed operation, low power dissipation, and low timing jitter. The cryogenic signal processor based on the SFQ circuits can sense the output signals of multi-pixel SNSPDs with low timing jitter in a low temperature stage, which provides an advanced SNSPD system such as a high-count rate system, a two-photon coincidence system, a single-photon imaging system, and so forth. We have developed and demonstrated some SNSPD systems using an SFQ signal processor in a 0.1-W Gifford-McMahon （GM） cryocooler. In this review, we introduce a cryogenic signal processor based on SFQ circuits for advanced SNSPD systems.
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)•Mar 19, 2024•0 citations