The invention relates to a
electric control device for beam translation based on Goos-Hanchen shift effect and a method thereof, and belongs to the technical field of
laser control. A bottom surface of a
prism and a lower surface of a
lithium niobate
wafer of an electro optic material are respectively plated with
metal films, and the bottom surface of the
prism and the surface of the
lithium niobate
wafer are adjusted to parallel and fixed by a
metal bracket so as to form a wave guide double surfaces of which are clad by
metal; and the wave guide is composed of an upper metal film, an air gap, the
lithium niobate
wafer and a lower metal film. When
laser is emitted on the surface of the wave guide, the
laser is coupled into a wave guiding layer to excite lateral shift of guided-mode
resonance enhanced reflected light when a
phase matching condition is satisfied. The upper metal film and the lower metal film are plated with electrodes and connected with an external
DC voltage source, and the
voltage is adjusted; parameters of the wave guiding layer are changed by
electro optic effect and piezoelectric effect of the
lithium niobate, which causes Goos-Hanchen
shift change of the reflected light and further realizes control on the beam translation. The
electric control device and the method thereof can achieve high stability and high precision of the beam translation control, and can be applied to general environments.