基于取样光纤光栅和传输矩阵理论研制了新型光子晶体，采用两种不同介电常数的材料交替排列的周期性结构，根据取样光纤光栅传输理论得到了设计结构的反射系数和透射系数。模拟分析和测试实验表明：所设计的光子晶体结构出现了多个反射峰，光栅长度增大时会导致反射率明显增大，反射峰数目增加，但反射峰的间隔不会发生变化；调制深度增加时，带宽会明显增大；随着折射率调制量的增大，反射峰数目会增加，反射率也显著增大(增大10%左右)。

The reflection and transmission coefficients of the design structure is obtained based on sampled fiber Bragg grating, transfer matrix theory, a new type of photonic crystals with two different dielectric constants of materials arranged alternately periodic structure, and the theory of sampled fiber grating transmission. Simulation analysis and test results show that the design of photonic crystal structure appeared multiple reflection peak. The increase of grating length will increase the reflectivity and reflection peak number obviously without changing the reflection peak. The results also show that the bandwidth is increased obviously with larger modulation depth. With the increase of refraction index modulation, the peaks will also increase, and reflectivity is increased significantly (10%).