一种近红外探测器的光谱响应率测量

王骥;郑小兵;张磊;林志强

应用光学 ›› 2007, Vol. 28 ›› Issue (3) : 313-316.

应用光学 ›› 2007, Vol. 28 ›› Issue (3) : 313-316.

一种近红外探测器的光谱响应率测量

  • 王骥,郑小兵,张磊,林志强
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Measurement of spectral responsivity of an infrared detector

  • WANG Ji,ZHENG Xiao-bing,ZHANG Lei,LIN Zhi-qiang
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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1260nm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。

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.

关键词

近红外探测器 / 探测器定标 / 光谱响应率

Key words

near-infrared detector / spectral responsivity / detector calibration

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导出引用
王骥, 郑小兵, 张磊, 林志强. 一种近红外探测器的光谱响应率测量. 应用光学. 2007, 28(3): 313-316
WANG Ji, ZHENG Xiao-bing, ZHANG Lei, LIN Zhi-qiang. Measurement of spectral responsivity of an infrared detector. Journal of Applied Optics. 2007, 28(3): 313-316

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