针对组成光纤布拉格光栅法布里珀罗(F-P)腔两端的光栅参数完全相同的情况，利用传输矩阵法，通过数值模拟分析了光纤布拉格光栅F-P腔的几个主要参数改变时对其透射谱特性的影响，详细讨论了光纤布拉格光栅F-P腔的时延和色散特性，分析了光纤布拉格光栅F-P腔腔长不同时对其慢光特性的影响。该结果对于设计布拉格光栅F-P腔以及布拉格光栅F-P腔在慢光和色散补偿方面的应用有一定的意义。

Based on the fiber Bragg grating Fabry-Perot (F-P) cavity with identical grating parameters at two ends, using the transfer matrix method and numerical simulation method, the influence of various parameters of fiber Bragg grating F-P cavity on its transmission spectrum features is analyzed, and the delay and dispersion characteristics of the fiber Bragg grating F-P cavity are discussed in detail. Finally, when its cavity length of fiber Bragg grating F-P cavity is changed, the influence on its slow light characteristics is analyzed. The results of this study can be useful for designing Bragg grating F-P cavity, which are also meaningful to actual experiments and applications in using fiber Bragg grating F-P cavity on the slow light and dispersion compensation.