文中基于耦合模理论和简化的阶跃折射率单模光纤三层模型的包层模理论，提出了长周期光纤光栅的传输谱特性仿真的主要步骤及 matlab程序实现，为长周期光纤光栅的数值仿真提供了一种简便的方法-Text-based coupled mode theory and a simplified three-step-index single-mode fiber cladding mode theory model, proposed long-period fiber grating transmissio

计算阶跃折射率光纤传播常数、归一化频率、截止波长、导模数量等- Calculate for Step Index Fibers (using MATLAB): a) Propagation constant (β) b) Normalized propagation constant (b) c) V number (V) d) Check whether the fiber is single mode or multi mod

阶跃型折射率光纤中的模式容量和光功率分布，单模光纤的特征方程及其MATLAB数值求解，多模光纤的特征方程及其MATLAB数值求解-Step-index fiber modes capacity and optical power distribution, single-mode fiber and MATLAB numerical solution of the characteristic equation, multimode fiber and its MATLAB numerical

Fiber Specification of Single Mode Step Index Fiber