基于耦合模理论均匀光纤光栅光谱仿真研究  

Spectral Simulation of Uniform Fiber Grating Based on Mode-Coupling Theory

作　　者：蔡虹[1] 

机构地区：[1]山西职业技术学院,山西太原030006

出　　处：《太原师范学院学报（自然科学版）》2011年第1期120-123,共4页Journal of Taiyuan Normal University:Natural Science Edition

基　　金：国家高技术研究发展计划(2009AA063006)资助

摘　　要：文章利用耦合模理论对均匀光纤光栅光谱进行了仿真研究,绘制出不同参数下的反射光谱特性曲线,讨论了不同参数对光纤光栅频率选择特性和反射特性的影响,仿真研究结果表明:均匀光纤光栅的反射光谱带宽与折射率调制深度近似成线性关系.反射谱带宽与光栅长度成近似的反比例关系.We make simulation study on uniform fiber grating on the ground of the theory of the mode-coupling.It discusses the effects of different parameters on the fiber grating frequency selectivity and dispersion characteristics and produces a map of the characteristic curves of reflection specturm with different parameters.The simulation study proves that moderate increase in the amount of uniform fiber grating can change its delay and dispersion characteristics to meet the needs of different specific situations.If the chirped FBG is applied in dispersion compensation,the length of chirped fiber grating should generally be longer.The uniform fiber grating,with the same length but different depth of refractive index modulation.will be larger with the increasing depth of refractive index modulation,so as the delay curve oscillation.

关 键 词：光纤光栅 耦合模理论 数值仿真 光学特性 

分 类 号：TN253[电子电信—物理电子学] TP391.9[自动化与计算机技术—计算机应用技术]