半导体激光器具有半导体和固体器件的许多优点：结构紧凑、效率高、价格便宜、长寿命，在许多方面优于气体激光器，因此在一些测量领域有较好的应用前景。本文基于棱镜对光的一维压缩及新型半导体激光器，对激光扫描声学显微镜的光学系统进行了新的设计，给出了相关数据及具体技术指标，实验证实其光学性能满足要求。整个光学系统具有结构紧凑、可靠性高、使用方便等特点，现已用于激光扫描声学显微镜定型设计。 Semiconductor lasers have many advantages of semiconductor and solid-state devices: compactness, high efficiency, low cost and long life, which are superior to gas lasers in many aspects and therefore have better application prospect in some measurement fields. In this paper, based on the prism one-dimensional compression of light and the new type of semiconductor laser, a new design of the optical system of laser scanning acoustic microscope was carried out. Relevant data and specific technical indexes were given. The optical properties of the system were verified by experiments. The entire optical system has the characteristics of compact structure, high reliability, easy to use, etc., is now used in laser scanning acoustic microscope stereotypes design.