矩形折射率调制型长周期光纤光栅传输谱的理论分析及数值计算

Theoretical analysis and numerical calculation for the transmission spectrum of long-period fiber gratings with a rectangular index modulation

给出了折射率调制类型为矩形波的长周期光纤光栅的理论分析方法 ,并利用计算机建模 ,以FlexcorTM10 6 0光纤为例 ,对采用振幅掩模法制作的长周期光纤光栅进行了数值模拟计算 ,计算结果与已有的实验相符合 .

In this paper, we present a theoretical method to analyze the spectral characteristics of long-period fiber gratings (LPGs) with a rectangular index modulation. Furthermore, we numerically calculate the transmission spectrum of a long-period grating written in Coming Flexcor(TM) 1060 fiber. The calculation results agree with the experimental results.