Photodetector Spectral Response Estimation Using Black Body Radiation
Keyword(s):
We propose a method for the estimation of the spectral response of a photodetector, using only the variation of the temperature of a black body source without the need of an expensive monochromator or a circular filter. The proposed method is suitable especially for infrared detectors in which the cut-off wavelength and the responsivity vs. wavelength is not exactly known. The method provides a rough estimation of the spectral response solving a Fredholm integral equation of the first kind. The precision of this technique depends on the temperatures at which the detector output is measured. Some examples are given for illustration.
2019 ◽
Vol 1380
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pp. 012152
2006 ◽
Vol 6
(3)
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pp. 264-268
2019 ◽
Vol 1294
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pp. 032026
1988 ◽
Vol 40
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pp. 407-417
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