Research on the broadband operating mode of anisotropic acousto-optic deflector using tellurium dioxide crystal

Abstract

Abstract. Theoretical studies on the broadband operating mode of anisotropic acousto-optic deflector (AOD) using tellurium dioxide crystal are carried out, the operating properties of the bandwidth and the central frequency of the AOD are systematically studied by solving the Dixon equation that characterizes the geometrical relationships of the acousto-optic interaction. The calculation results show that the bandwidth and the central frequency of the AOD are highly depended on the off-axis angle of the ultrasonic vector, which shows linear properties in the operating bandwidth both for the +1 order and -1 order diffractions.