Control Theory of Abnormal TeO_2 Acousto-optical Deflector
反常氧化碲声光偏转器控制理论研究

The relationship between acoustic wave direction,laser incident angle,and laser diffraction angle of TeO2 acousto-optical deflector with acoustic frequency was analyzed based on the TeO2 crystal acousto-optical characteristic and Dixon equations under abnormal Bragg diffraction.A simple linear model for the fixed diffraction angle was set up by numerical calculation and parameter fitting.Using the linear model,acoustic wave frequency for fixed laser diffraction angle could be obtained easily.