demodulation

说明：  NPR 光纤激光器 Fortran程序(FORTRAN program of NPR fiber laser)

利用matlab实现光学系统像差仿真，泽尼克像差代码实现(Aberration simulation of optical system using MATLAB and Zernike aberration code implementation)

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.)

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)

LG光束的光强和相位模拟，包括缔合拉盖尔多项式和相位屏(Intensity and Phase of LG Beams)

说明：  该程序能够产生涡旋光束，并提取出相位，亲们试试(The program can generate vortex beam, and extract the phase, parents try)

说明：  光学系统设计，主要用于激光应用中的光路设计，各类光学镜片与各类光源的相互作用(Optical system design)

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)

说明：  修改图片文件名称，即可计算激光光斑中心，中心计算采用重心法，用十字标出重心位置(Detect the laser spot center)

利用numpy库实现激光器领域的时域行波模型。该模型输出激光器信号，频谱等。(The time-domain traveling wave model in laser field is realized by using numpy library. The model outputs laser signals, spectrum and so on.)