We report demonstration of a readout circuit with high-throughput single flux quantum (SFQ) based encoders for a large-scale video imaging system with a conventional frame rate. The encoders are fully parallel and integrated on the same chip as linear arrays of serially connected superconductor stripline detectors (SSLDs), superconducting quantum interference device (SQUID) based comparators, and SFQ synchronizers. Mutual coupling of parallel SSLDs and SQUID-based comparators allows the use of only one dc bias line; it is possible to use thousands of SSLDs without increasing the bias current or number of bias ports. To achieve crosstalk-free readout, the serially connected SSLDs are separated by low-pass filters or large inductors. We experimentally demonstrated crosstalk-free readout including SFQ parallel encoders from 1-D or 2-D serially connected SSLD arrays.

中文翻译：

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SFQ 并行编码器有望用于超导体带状线探测器的视频成像

我们报告了具有基于高通量单通量量子 (SFQ) 的编码器的读出电路的演示，用于具有传统帧速率的大规模视频成像系统。编码器是完全并行的，并与串联超导带状线检测器 (SSLD)、基于超导量子干涉装置 (SQUID) 的比较器和 SFQ 同步器的线性阵列集成在同一芯片上。并行 SSLD 和基于 SQUID 的比较器的相互耦合允许仅使用一根直流偏置线；可以在不增加偏置电流或偏置端口数量的情况下使用数千个 SSLD。为了实现无串扰读出，串联的 SSLD 由低通滤波器或大电感器隔开。