为了提高波前探测过程中的波前采样频率, 提出了一种基于二元互补模式的波前重构方法.该方法利用二元互补调制模式下获得的远场焦点光强信息对光场实部进行重构, 进而通过光束的光强分布对光场虚部进行重构.该方法避免了额外调制模式的使用, 将波前重构过程中所使用的调制模式的数量缩减为原有方法的2/3, 提升了波前采样频率.通过数值仿真对光强分布不均匀的待测光束的波前进行了重构, 并利用实验对倾斜像差进行了测量重构, 验证了该方法的可行性.

In order to improve the wavefront sampling frequency in wavefront detection, a wavefront reconstruction method based on two element complementary mode is proposed. The method reconstructs the real part of the light field by using the far field focal light intensity obtained under binary complementary modulation mode, and then reconstructs the imaginary part of the light field through the light intensity distribution of the beam. The method avoids the use of additional modulation mode, which reduces the number of modulation modes used in the process of wavefront sampling to 2/3 of the original method, and improves the wavefront sampling frequency. The wavefront of the beam with uneven intensity distribution is reconstructed in the numerical simulation, and the tilt aberration is reconstructed by experiments, which verify the feasibility of the method.