Error analysis of Fabry-Perot Filter

Two-dimension imaging spectrograph based on the Fabry-Perot can serve astronomical observations needs, e.g.high temporal, spatial, and spectral resolutions, especially in combination with adaptive optics and advanced image restoration techniques.This paper introduces several important parameters for Fabry-Perot filter, and attempts to analyze its errors, which include phase errors, parallel errors of two plates, errors led by other changesn.