利用matlab模拟光纤中EH11模的模式分布图。-Using matlab simulation mode fiber EH11 mode maps.

了解光纤的四类导波模式的特征方程,掌握四类导波模式与归一化截止频率的对应关系.-Understand the four types of guided wave mode characteristic equation of optical fiber, master the four types of guided wave mode and the corresponding relation of the normalized cut-off frequency.