The next Japanese earth observing hyperspectral/multispectral imager mission, the HISUI (Hyper-spectral Imager SUIte)
mission, is currently underway. In order to guarantee the hyperspectral images with a high spatial and wavelength
resolution, it is necessary to evaluate the difference of the spectral sensitivities among the detector devices arrayed twodimensionally
and correct spectral and spatial misregistrations and the effect of stray light. Since there are tens of
thousands of detectors in the two-dimensional-array sensor, they have to be evaluated in parallel, instead of point by
point, with the special technique for hyperspectral imagers. Hence, the new calibration system which has high radiance
with the spatial uniformity and widely tunable wavelength range is required instead of conventional lamp systems which
have poor power to calibrate arrayed devices at once.
In this presentation, a supercontinuum-source-based system for calibration of hyperspectral imagers and its preliminary
performance are described. Supercontinuum light is white light with continuous and broad spectra, which is generated by
nonlinear optical effects of ultrashort pulse lasers in photonic crystal fibers. Using the system, the relative spectral
responsivity and spectral misregistration of the hyperspectral imager, which is consist of a polychromator and twodimensionally arrayed CCD, are measured.