Light beam shaping system based on biprism pair and cylindrical lens

The utility model provides a light beam shaping system based on a biprism pair and a cylindrical lens. The light beam shaping system comprises a semiconductor laser diode, a collimating lens, a firstprism pair, a second prism pair, a polarization element, a power feedback sheet, a cylindrical lens and an objective lens which are arranged in sequence, the first prism pair comprises two first prisms used for shaping the light beams in the vertical direction, and the second prism pair comprises two second prisms used for shaping the light beams in the horizontal direction; the emergent light path of the second prism pair is sequentially provided with a polarization element, a power feedback sheet, a cylindrical lens used for adjusting the beam waist position of the light beam in the verticaldirection or the horizontal direction, and an objective lens used for focusing and emitting the light beam. The first prism pair and the second prism pair are used for shaping laser beams in the vertical direction and the hor