中文摘要：

采用光学无源腔理论得到了法布里-珀罗干涉仪的透射谱,并指出当谐振腔的损耗较小时,干涉仪的透射谱可认为是由一列相互独立的透射峰构成,每个透射峰呈洛伦兹线型.这为理解法布里-珀罗干涉仪的工作原理提供了一个新思路.

英文摘要：

The transmission spectrum of the Fabry- Pe＇ rot interferometer is achieved basing on the theory of passive optical resonators. When the cavity loss is sufficiently small,the transmission spectrum can be considered as a series of independent transmission peaks which have Lorentzian line- shape. This method may offer a new thought of understanding the operating principle of the Fabry- Pe＇rot interferometer.