中文摘要：

提出了一种基于旋转相位调制手段恢复复杂光场相位的方法,通过数值模拟验证其有效性和可行性。采用结构简单的相位板横向旋转到一个或更多新的位置来产生多个夫琅禾费衍射图样,通过修正的混合输入输出算法（HIO）对光场进行复原。模拟实验表明,该算法能在二维情况下快速准确地恢复复杂光场,并且大幅度地提高了复杂光场的恢复精度。多次选取随机初始迭代值,没有出现迭代停滞现象和收敛结果不确定的问题,且具有良好的抗噪性能。

英文摘要：

A method of iterative phase retrieval of complex optical field was studied.This method uses a series of diffraction patterns to solve for both amplitude and phase of the object field by using hybrid input-output algorithm.The method requires a phase plate that need transversely rotated to one or more positions.The method needs no a priori knowledge about the object field.The convergence rate was rapid.The simulation results showed this algorithm could fast retrieve a complex optical field in high accuracy.The retrieval accuracy of complex optical field was greatly enhanced.The method does not suffer any stagnation or ambiguity problem,and it has high stability towards additive noise.