To validate the theoretical analysis, a test system for group velocity delay was set up based on RF modulation.

为了验证理论分析，设计了射频调制法测试介质膜滤波器群速度延时的实验装置。

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The experiment shows that the bandwidth of the time delay as a function of the modulation frequency changes in the absorption and gain regimes due to the carrier-lifetime variation.

实验结果表明，由于载体寿命的变化，在吸收和增益区域，带宽的时滞随着调制频率的变化而变化。

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