用FDFD模拟光子晶体光纤的色散的程序，主程序为FDFD.m，计算色散的为dispersion.m-FDFD simulation of photonic crystal fibers with a dispersion of the process, the main program for the FDFD.m, calculated dispersion for dispersion.m

二维光子晶体禁带的MATLAB源码,光子晶体中因周期性结构而存在的频率禁带称为光子禁带，光子禁带的存在是光子晶体具有广泛应用前景的重要原因。 禁带越大，可控光的频带也越宽-Two-dimensional photonic crystal band gap of MATLAB source, photonic crystal structure exists because of the cyclical frequency band known as photonic band gap, pho