WAVELENGTH CALIBRATION METHOD FOR SPECTRORADIOMETERS WITH PICOMETER UNCERTAINTIES (PP40, 736-739)

WAVELENGTH CALIBRATION METHOD FOR SPECTRORADIOMETERS WITH PICOMETER UNCERTAINTIES (PP40, 736-739)

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Accurate wavelength calibration of array spectroradiometers is critical to many applications. We developed a new method for calibration of array spectroradiometers’ wavelength scales using a wavelength-tunable kilohertz-pulsed optical parametric oscillator (OPO) laser and achieved a wavelength uncertainty on the level of picometers; a reduction of approximately two orders of magnitude compared to those using traditional methods. This high-accuracy wavelength calibration method can also be used to determine a spectroradiometer?s pixel-to-pixel wavelength interval with an uncertainty of a few picometers, which is the key to achieving small uncertainties when a detector-based method is used for spectral calibration of array spectroradiometers using tunable lasers. Using this calibration method can also significantly reduce the overall measurement uncertainties in various applications.

Product Details

Published:
10/23/2017
Number of Pages:
5
File Size:
1 file , 990 KB

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