耦合模光纤光栅仿真

在光纤环形腔中经过级联四波混频产生光频率梳，梳齿频率间隔可调，光纤环形腔中不同模块色散，非线性系数可调。(Optical frequency comb are generated in the fiber cavity by the process of cascaded four wave mixing.)

NALM锁模激光器仿真，非线性环路反射镜锁模获得飞秒激光脉冲。(The simulation of NALM mode-locked laser shows that the femtosecond laser pulse can be obtained by mode-locked non-linear loop mirror.)

说明：  该算法是最原始的GS算法，可实现利用频域已知振幅，空域已知振幅对空域相位的复原，另包含GS算法原始文献。(The algorithm is the original GS algorithm, which can be used to recover the spatial phase with the known amplitude in the frequency domain and the spatial domain, and include the original literature of the GS algorithm.)

说明：  仿真了单模光纤载沿轴向传输时电场模的分布情况，其中参数可调(The distribution of electric field modes in single-mode optical fibers is simulated, in which the parameters are adjustable.)

布拉格光纤光栅解调代码，用于布拉格光纤光栅的光频域反射技术的传感解调(Grating demodulation)

这五个程序是有关涡旋光的产生和光栅生成的程序。1.是单束涡旋光生成 2.生成叉形光栅。3.生成立体的涡旋光。4.生成不同拓扑荷数涡旋光对应相位图。5.生成正弦周期光栅和螺旋相位片图(These five programs are programs for the generation of vortex beams and the generation of grating. 1. is the generation of single beam of vortex light The 2. generation of fork shaped grating. 3. generation of three-dimensional vortex light. 4. the phase diagram of the different topological charge vortex optical rotation is generated. 5. generation of sinusoidal periodic gratings and spiral phase plate)

最小二乘法进行泽尼克多项式拟合将离散数据点拟合成面型。(use the least square method to fit the wavefornt with zernike polynomials.)

说明：  NALM锁模激光器仿真，非线性环路反射镜锁模获得飞秒激光脉冲。(The simulation of NALM mode-locked laser shows that the femtosecond laser pulse can be obtained by mode-locked non-linear loop mirror.)

说明：  利用LP01模式来对单模光纤模场直径与归一化频率的关系进行简单计算(Calculating the relationship between mode field diameter and normalized frequency of single mode fiber)

光学领域的菲涅耳反射及透射，发射率，透射率等详细程序(Fresnel reflection and transmission in the field of optical, emissivity, transmittance and detailed procedure)