In this letter, we present the first use of a terahertz (THz) photonic-driven source toward active circuit characterization. We show that a single source can be used for intermodulation points and noise figure measurement. The method is applied at 300 GHz with a HEMT technology-based low noise amplifier (LNA). We show that the third and fifth intermodulation behavior at 300 GHz can be extracted taking advantage of the linearity of the THz photonic devices. Here, the millimeter-wave/THz source is an unitraveling carrier photodiode (UTC-PD) used either as a signal generator with two-tones or as a noise source.

中文翻译：

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由单个太赫兹光子源实现的 300-GHz 互调/噪声表征

在这封信中，我们首次将太赫兹 (THz) 光子驱动源用于有源电路表征。我们表明单个源可用于互调点和噪声系数测量。该方法使用基于 HEMT 技术的低噪声放大器 (LNA) 在 300 GHz 下应用。我们表明，可以利用太赫兹光子器件的线性度提取 300 GHz 下的第三和第五互调行为。在这里，毫米波/太赫兹源是一个单程载波光电二极管 (UTC-PD)，用作双音信号发生器或噪声源。