Title
Calibration of a CubeSat spectroradiometer with a narrow-band widely tunable radiance source
Author
van den Berg, S.
Dekker, P.
Otter, G.C.J.
Pelica Páscoa, M.I.
Dijkhuizen, N.
Publication year
2021
Abstract
We have developed an SI-traceable narrow-band tunable radiance source based on an optical parametric oscillator (OPO) and an integrating sphere for the calibration of spectroradiometers. The source is calibrated with a reference detector over the ultraviolet/visible spectral range with an uncertainty of < 1%. As a case study, a CubeSat spectro-radiometer has been calibrated for radiance over its operating range from 370 nm to 480 nm. To validate the results, the instrument has also been calibrated with a traditional setup based on a diffuser and an FEL lamp. Both routes show good agreement within the combined measurement uncertainty. The OPO-based approach could be an interesting alternative to the traditional method, not only because of reduced measurement uncertainty, but also because it directly allows for wavelength calibration and characterization of the instrumental spectral response function and stray light effects, which could reduce calibration time and cost.
Subject
Space & Scientific Instrumentation
Industrial Innovation
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http://resolver.tudelft.nl/uuid:dbc1e774-7bae-4c34-9401-20ee0a3de64d
DOI
https://doi.org/10.1364/ao.417467
TNO identifier
957571
Publisher
Optical Society of America OSA
ISSN
1559-128X
Source
Applied Optics, 60 (60), 1995-2002
Document type
article