本装置是一多功能光谱测试装置，适用于对红外探测器作宽范围光谱灵敏度的测量，以及红外光源光谱能量分布测量。
This apparatus is a multifunction spectrum testing set-up, which suits to measure for infrared detectors the wide range spectral sensitivity and also the distribution of spectral energy.
讨论了入射光谱分布对调制灵敏度的影响，以及波导电极直流偏置电压对保证调制灵敏度的作用。
The effect of the incident light spectrum and the waveguide electrode's DC bias voltage on the modulation sensitivity is discussed.
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