涡旋光束的强度图和相位图都会跟着发生变化，因此拓扑电荷数是涡旋光束最重

The intensity map and phase map of the vortex beam will change accordingly. Therefore, the topological charge number is the most important characterization of the vortex beam. The LG beam used in all the following simulation diagrams can be set to the same frequency. If only the topological charge is changed In theory, there are an infinite number of carriers in a single frequency or a wavelength. Using these carriers to encode or carry information will inevitably greatly increase the channel capacity and spectrum efficiency, and solve the current shortage of spectrum in the communication field. Dilemma

涡旋光束的强度图和相位图都会跟着发生变化，因此拓扑电荷数是涡旋光束最重要的表征，以下所有的仿真图使用的ＬＧ光束我们均可以设置为相同的频率，如果仅仅改变拓扑电荷数的值，那么在单一频率或者一个波长上理论上就存在着无穷多的载波数，利用这些载波进行编码或者携带信息，必然会极大地提高信道容量和频谱效率，解决目前通信领域中频谱紧缺的困境

The intensity diagram and phase diagram of the vortex beam will change along with it. Therefore, the topological charge number is the most important characterization of the vortex beam. We can set the LG beam used in all the simulation diagrams below to the same frequency. If we only change the value of the topological charge number, there will be infinitely many carriers in a single frequency or a wavelength in theory Carrier coding or carrying information will greatly improve the channel capacity and spectrum efficiency, and solve the problem of spectrum shortage in the field of communication<br>