【摘要】 对近红外辐射功率光谱绝对响应率的定标技术进行了研究。设计了一种制冷扩展波长型的InGaAs探测器,为了使其能够作为功率传递的标准探测器工作在(1.2-2.5)μm波长范围,对探测器的光谱响应率进行了测量。首先在1 260 nm波长下进行绝对功率传递的标定试验,然后用基于红外单色仪的光谱比较系统(SCF)测量了探测器的相对光谱响应率。结合2个步骤的数据,最终可以得到探测器的绝对光谱响应率。更多还原

【Abstract】 The calibration technology for absolute spectral responsivity of the near-infrared radiation power is investigated.An extended infrared-InGaAs(EIR-IGA) photodiode was designed.The spectral responsivity of the EIR-IGA detector was measured to allow it to be a standard power-transfer detector working in the wavelength range of 1.2μm～2.5μm.This near-infrared detector was also calibrated by cryogenic radiometers before.The absolute responsivity of the EIR-IGA detector was calibrated in 1260nm,and the continuous relative spectral responsivity was measured with a new IR SCF system based on IR monochromator.The absolute spectral responsivity of the detector is obtained at last with the two steps.更多还原