对自适应光学中激光导星的基本原理及系统中所需的超窄带滤光技术作了简单的介绍。重点介绍了一些有望应用于激光导星系统上的滤光技术,如:原子共振光学滤光器、双折射滤光器、法拉第反常色散滤光器、法布里-珀罗滤光器等。针对以上滤光技术各自的特点,阐明了它们的基本原理,给出了部分主要参数,并且对各滤光技术的发展现状和不足作了简要阐述。 The basic principle of laser guide star in adaptive optics and the ultra-narrowband filter technology needed in the system are briefly introduced. Some of the filter technologies that are expected to be applied to laser guiding systems are highlighted, such as atomic resonance optical filters, birefringent filters, Faraday anomalous dispersive filters, Fabry-Perot filters and the like. Aiming at the characteristics of the above filtering technologies, the basic principle of them is expounded, some of the main parameters are given, and the status and shortcomings of each filtering technology are briefly described.