法布里-珀罗标准具由于其结构简单、性能稳定,不仅可以实现不同频率光束的分离、高精度的长度测量、分析激光的纵模结构等,还可用于激光器的稳频系统。本文对F-P标准具的透射率、半高宽度、自由光谱区以及透射率与温度的关系等特性进行了研究,并将其应用在激光器的稳频装置中。 Due to its simple structure and stable performance, the Fabry-Perot etalon can not only realize the separation of beams with different frequencies, high-precision length measurement, and analysis of the longitudinal mode structure of the laser, but also can be used in the frequency stabilization system of lasers. In this paper, the transmissivity, FWHM, free spectral range and the relationship between transmittance and temperature of F-P etalon are studied and applied to the frequency stabilization device of laser.