论文标题
大格式光子计数微波动力电感检测器的第二代读数
Second Generation Readout For Large Format Photon Counting Microwave Kinetic Inductance Detectors
论文作者
论文摘要
我们介绍了用于光子计数微波动力电感检测器（MKID）阵列的第二代数字读数系统的开发，该系统在光学和近IR波长频段中运行。我们的系统保留了第一代系统的大部分核心信号处理体系结构，但带宽明显更高，从而使Kilopixel MKID阵列读数。每组读取板都能读取1024 MKID像素在2 GHz带宽上多发性多发性；可以平行放置两个这样的单元，以在4-8 GHz频段上读取完整的2048像素微波馈线。与第一代读数一样，我们的系统能够实时识别，分析和记录光子检测事件，并通过几微秒的时间分辨率分辨率。在这里，我们描述了硬件和固件，并对系统的噪声属性进行了分析。我们还提出了一种新型算法，可有效抑制智商混合器边带至-30 dBC。
We present the development of a second generation digital readout system for photon counting microwave kinetic inductance detector (MKID) arrays operating in the optical and near-IR wavelength bands. Our system retains much of the core signal processing architecture from the first generation system, but with a significantly higher bandwidth, enabling readout of kilopixel MKID arrays. Each set of readout boards is capable of reading out 1024 MKID pixels multiplexed over 2 GHz of bandwidth; two such units can be placed in parallel to read out a full 2048 pixel microwave feedline over a 4 -- 8 GHz band. As in the first generation readout, our system is capable of identifying, analyzing, and recording photon detection events in real time with a time resolution of order a few microseconds. Here, we describe the hardware and firmware, and present an analysis of the noise properties of the system. We also present a novel algorithm for efficiently suppressing IQ mixer sidebands to below -30 dBc.
