An enhancement of EDOM in the bandedge was analysis, and it is proportional to the square of the period number N and inverse proportional to the difference of refraction index of two mediums approxmately. It is proved by the result of computer work.

• 分析了在带边缘处EDOM有极大增强的现象 ；其值近似正比于周期数N的平方和两种介质折射率差的平方 ；并用数值计算结果证实了这一特点 .