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提出将微分－积分法用于二元光学分束器的设计，以改善其输出对输入变化的敏感性。模拟计算表明，使用这种方法设计的分束器，当输入光束形状和强度变化时，目标光强分布保持一定程度的稳定性，衍射效率达到９２．６７％，光强不均匀性小于０．００２％。当输入由基模高斯波变为超高斯波或带有微小随机起伏的矩形光斑和平面波时，衍射效率最低仍能达到８９．６０％以上，光强不均匀性最高为１１．４９％。综合衍射效率与光强不均匀性两方面考虑，本文设计结果优于现有文献报导
The differential-integral method is proposed for the design of a binary optical beamsplitter to improve the sensitivity of its output to changes in the input. The simulation results show that the beamsplitter designed by this method has a certain degree of stability when the shape and intensity of the input beam changes. The diffraction efficiency reaches 92.67% and the light intensity nonuniformity is less than zero. 002%. When the input Gaussian wave from the fundamental mode into super-Gaussian wave or with a small random fluctuations rectangular spot and plane wave, the diffraction efficiency can still reach the minimum of 89.60%, the highest non-uniform light intensity of 11.49%. Considering both the diffraction efficiency and the light intensity nonuniformity, the design results in this paper are superior to those reported in the literature