Accurate Measurement of Gain Saturation of Superconductor-Insulator-Superconductor Mixers with Logarithmic Power Detectors

被引：0
|
作者：
Shan, Wenlei [1 ,2 ]
机构：
[1] Natl Astron Observ Japan, Mitaka, Tokyo, Japan
[2] Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2018年 / 193卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Gain saturation; Superconductor-insulator-superconductor; Logarithmic power detector;
D O I：
10.1007/s10909-018-1876-5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Correct measurement of the power of a continuous wave signal superimposed on a broadband noise is a presupposition for the accuracy of the gain saturation measurement of a superconductor-insulator-superconductor mixer. In practice, the response of a logarithmic power detector to a mixture of broadband noise and continuous wave signal can be unexpectedly nonlinear. This nonlinearity can cause significant error if correction is not applied.
引用
收藏
页码：402 / 407
页数：6
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