The spectra characteristics of both the single mode fiber Bragg grating and the hi-birefringence fiber Bragg grating are analyzed and simulated with coupled-mode theory.

• 利用耦合模理论分别对光纤布喇格光栅和双折射光纤布喇格光栅的光谱特性进行了分析和计算机模拟。 探讨了光纤布喇格光栅的轴向应变调谐和横向应变调谐机理,并对两种调谐技术给出了理论分析结果。