Spectrum forming and detection in the system of monitoring, based on a diffraction grating

The problems of the formation and output of the measurement results of the energy spectrum of the optical signal in a spectrum analysis system based on a device with a diffraction grating and fiber-optic transmission system (FOTS) of the analyzed signals are considered. The use of FOTS allows implementing a contactless method of spectrum analysis. A mathematical model has been developed for obtaining reference values of the energy spectrum by linear CCD sensor detection. A method for correction reading results allows us to take into account the nonuniformity of the spectral sensitivity of the linear CCD sensor, the frequency response of the attenuation of the optical fiber, and also the features of the formed spectra in different diffraction orders is proposed.