对780nm声光调制器(AOM)的温度响应进行了详细的理论计算,发现AOM衍射光偏振角的温度响应系数远大于衍射效率和衍射角的温度响应系数。针对AOM衍射光偏振角的温度响应,在地面实验室环境下对其进行了实验验证。在空间微重力环境下,AOM的温度响应可能会成为制约空间项目光学平台工作温度范围和性能指标提高的主要因素之一。基于AOM在实际空间应用中的脉冲工作模式,通过仿真建模给出了AOM声光晶体温度随环境温度的变化曲线,并给出了优化措施。 The temperature response of 780nm acousto-optic modulator (AOM) is calculated theoretically. The temperature response coefficient of the polarization angle of AOM diffracted light is much larger than that of diffraction efficiency and diffraction angle. According to the temperature response of AOM diffracted light polarization angle, it was experimentally verified in the laboratory environment. Under the micro-gravity environment, the temperature response of the AOM may become one of the main factors restricting the working temperature range and the performance index of the optical platform of the space project. Based on the pulse mode of AOM in real space application, the curve of the temperature of AOM acousto-optic crystal with ambient temperature is given through simulation modeling and the optimization measures are given.