摘要
为给两个光栅不同级联后产生的误差提供解决依据,采用传输矩阵法对两个不同参数的长周期光纤光栅(LPG)级联后的传输谱进行分析,研究了两个光纤光栅长度、平均有效折射率调制、级联光纤长度等参数不同时对级联光栅传输谱的影响。仿真结果表明:级联长度不同的光栅和光纤,以及平均有效折射率的不同调制对传输光谱均有影响。通过分析发现,改变级联长周期光纤光栅(CLPG)的参数可以实现不同特性的传输谱。
In order to provide a solution for the error caused by two different gratings cascades, transmission matrix is used to analyze the transmission spectra of two long-period gratings with different parameters. The effects of two gratings with different lengths, different average effective refractive index modulation, and dif- ferent cascaded fiber length on the cascaded transmission spectra were studied. Simulation results show that cascading different lengths of grating, different lengths of fiber, and different modulation of the average effec- tive refractive index all have an effect on the transmission spectrum. Through analysis, it is found that changing the parameters of the cascaded long-period fiber grating （CLPG） can realize the transmission spectrum of different characteristics.
作者
高敏
葛海波
李盼盼
王维
GAO Min;GE Haibo;LI Panpan;WANG Wei(School of Electronics Engineering,Xi＇an University of Posts and Telecommunications,Xi＇an 710121,China)
出处
《光通信技术》
北大核心
2018年第11期56-59,共4页
Optical Communication Technology
基金
陕西省自然科学基金(2011JM8038)资助
关键词
传输矩阵法
级联长周期光纤光栅
传输谱
transfer matrix method
cascaded long period fiber grating
transmission spectrum
