Electro-Optic Effect in the PESO Acousto-Optic Modulator

摘要

With the theory of one-dimensional approximation, combined with the boundaryconditions, an inhomogeneous electric field is derived from the fundamental equations of pieozoelectric effect. This inhomogeneous electric field will lead to generation of electric grating, and high-order grating can also appear owing to coupling between electric grating and acoustic grating. Linear electro-optics effect in PESO modulator is helpful to the diffraction and modulation of the incident light beam. The experimental results verify our conclusions. (Author).