AAbsolute spectral radiation calibration of fiber spectrometer

As a referenced spectral detector, the accurate calibration of fiber spectrometer is very important. The absolutely spectral response function of the fiber spectrometer within 550nm-900nm was obtained with a new technique, which avoids using a high temperature blackbody, and the uncertainty of the response function is less than 3.53%. Besides, a novel method is used to obtain the color temperature of the light source with characteristic of gray body.