色散是光子晶体光纤最为重要的特征参量之一。在分析当前各数值计算方法特点的基础上，将最简单的经验公式法和基于多级法的光学系统超高节免设备(CUDOS)仿真软件结合起来，对全内反射型光子晶体光纤的色散特性进行了数值计算，分析了孔径d、孔间距Λ以及d/Λ对色散的影响，得到了一些对于光子晶体光纤的设计具有一定的指导意义的结论。同时，利用之前搭建的基于超连续谱白光干涉仪的超宽波段、高精度色散测量系统，对孔径d=2.17 μm、孔间距Λ=3.47 μm的全内反射型光子晶体光纤的色散系数进行了测量。实验结果与数值计算的结果基本吻合，零色散点基本一致，理论值和实验值分别为1.018 μm和0.973 μm，较好地验证了数值计算方法和色散测量系统的有效性。

Dispersion is one of the most significant parameters of photonic crystal fibers. The dispersion properties of total internal reflection photonic crystal fibers are numerically studied using the simple empirical relation method and CUDOS simulation software, which is based on the multipole method, by analyzing various numerical methods available currently. And the effects of air hole diameter d, hole pitch Λ, and d/Λ on the dispersion properties are numerically investigated in details, and some results, which are useful for design of photonic crystal fibers, are given. A photonic crystal fiber, whose length is 328 mm, hole diameter is 2.17 μm, and hole pitch is 3.47 μm, is tested using the ultro-broadband and high precision dispersion measurement system constructed previously, which is based on white light interferometer using supercontinuum as the light source. The experimental dispersion curve is well in agreement with the numerical results, and the tested zero-dispersion wavelength and the numerical value are 0.973 μm and 1.018 μm respectively, which well verify the validities of the numerical method and the measurming system.