title: Accurate wavelength calibration method for flat-field grating spectrometers.
abstract: A portable spectrometer prototype is built to study wavelength calibration for flat-field grating spectrometers. An accurate calibration method called parameter fitting is presented. Both optical and structural parameters of the spectrometer are included in the wavelength calibration model, which accurately describes the relationship between wavelength and pixel position. Along with higher calibration accuracy, the proposed calibration method can provide information about errors in the installation of the optical components, which will be helpful for spectrometer alignment.
authors.affiliation: University of Science and Technology of China, Hefei, Anhui 230029, PR China.
authors.forename: Xuewei
authors.initials: X
authors.lastname: Du
authors.forename: Chaoyang
authors.initials: C
authors.lastname: Li
authors.forename: Zhe
authors.initials: Z
authors.lastname: Xu
authors.forename: Qiuping
authors.initials: Q
authors.lastname: Wang