摘要
本文以耦合模理论为基础，研究了光纤光栅的滤波特性，导出了反射率、透射率的理论表达式，讨论了光栅参数对其滤波特性的影响。
In this paper, based on couple-mode theory, we analyzed the characteristics of fiber Bragg grating fibering and achieved the theoretical expressions of reflectivity and transmissivity. The influences of the grating＇s constituting are discussed.
关键词
光纤光栅
耦合模方程
反射特性
透射特性
Fiber Bragg Grating（FBG）
Couple-mode Equations
Reflection Characteristics
Trasmission Characteristics
