在双波长全息术中，全息图可用一个波长记录，用另一个波长重现。用光学寻址液晶空间光调制器作为记录介质，可方便实现动态双波长全息图的记录。经一个畸变波前记录动态全息图后，由具有相同畸变的另一个波前去重现该动态全息图，可以实现对光学波前畸变的等比例缩小。在用于自适应光学的负性反馈回路中时，可简化大波前畸变的测量过程，可在中红外光谱范围内记录并制作动态全息图畸变校正器（在此波段直接的全息记录是极难的），也能增大可校正的畸变范围。介绍了这种动态干涉仪的实验实现，及该动态全息记录技术应用于自适应光学的前景。

In two-wavelength holography,the hologram is recorded at one wavelength and reconstructed at another shifted wavelength.Optically addressed liquid crystal spatial light modulatorsare very suited for recording thin dynamic two-wavelength hologram as recording medium.When another wavefront with the same distortion reconstruct the recorded dynamic hologram,a certain scaling of the wavefront distortions would be obtained.As a holographic interferometer it can be used in a negative optical correction feedback loop of the adaptive optics system.It can simplify the procedure of measuring of the robust wavefront distortions,record the dynamic holographic correctors working in mid-IR range of spectrum where the direct holographic record is impossible,extend the range of distortions that can be corrected.The experimental realization of such a dynamic holographic interferometer is introduced and the prospect of this technicalscheme is viewed.