Multiplexed Readout for 1000-Pixel Arrays of Microwave Kinetic Inductance Detectors
Multiplexed Readout for 1000-Pixel Arrays of Microwave Kinetic Inductance Detectors
复制标题
微波动感电感探测器 1000 像素阵列的多重读出
DOI：
10.1109/tmtt.2016.2544303
复制
发表时间：
2015
影响因子：
4.3
通讯作者：
J. Baselmans
中科院分区：
文献类型：
--
作者：
J. van Rantwijk;M. Grim;D. van Loon;S. Yates;A. Baryshev;J. Baselmans
微波动力学电感探测器（MKID）是远红外和亚毫米天文学中最有吸引力的辐射探测器。他们结合联合收割机的可能性，以创建非常大的探测器阵列，在超过10000像素的最终灵敏度。这通过使用RF频分复用读出阵列是可能的，RF频分复用允许每个读出线超过1000个像素的复用比。我们描述了一种新的读出系统的大阵列的MKID，在4-8-GHz范围内的2-GHz频段工作。读出，这是一个数字前端和后端和模拟上变频器和下变频器系统的组合，可以读出多达4000个探测器同时与1 kHz的数据速率。该系统在同时阅读1000个载波的情况下，读出噪声功率谱密度为-98 dBc/Hz，与载波数成线性关系。我们证明，4000国家的最先进的铝-NbTiN MKID可以读出，而不会恶化其固有的性能。
Microwave kinetic inductance detectors (MKIDs) are the most attractive radiation detectors for far-infrared and sub-mm astronomy. They combine ultimate sensitivity with the possibility to create very large detector arrays, in excess of 10000 pixels. This is possible by reading-out the arrays using RF frequency division multiplexing, which allows multiplexing ratios in excess of 1000 pixels per readout line. We describe a novel readout system for large arrays of MKIDs, operating in a 2-GHz band in the 4-8-GHz range. The readout, which is a combination of a digital frontand back-end and an analog upconverter and downconverter system, can read out up to 4000 detectors simultaneously with 1-kHz data rate. The system achieves a readout noise power spectral density of -98 dBc/Hz while reading 1000 carriers simultaneously, which scales linear with the number of carriers. We demonstrate that 4000 stateof-the-art aluminium-NbTiN MKIDs can be read out without deteriorating their intrinsic performance.