【摘要】 本文利用子结构分析方法分析了在某一区域折射率发生微小变化的布拉格光纤光栅的特性,讨论了光栅透射谱随折射率变化量、折射率发生变化的区域长度及其位置的变化关系.更多还原

【Abstract】 Using the analysis of substructures, the paper analyses the fiber Bragg gratings’ transmission properties, which is that the refractive index takes place a tiny change in some region. At the same time, it also discusses the changeable relationship between transmission spectra and refractive index-shifted. The transmission spectra changes according to the change of refractive index’s value, length of region and location.更多还原