7-core

代码说明：

  这是七芯光纤的耦合matlab程序，7根芯子可以自己设定部分通光，也可以全部通光；芯子的折射率也可以不一样。(This is a seven-core optical fiber coupling matlab program, seven core can set their own section through light, you can pass all the light the refractive index of the core may not be the same.)