彩色全息显示是全息显示的一个重要研究目标。研究了使用RGB三色激光的彩色全息显示技术，提出基于空分复用的彩色全息显示方法。全息光电再现像的成像区域大小和成像区域中心位置依赖于RGB三色激光的波长，通过调节RGB三色分量原图大小以及加载数字闪耀光栅实现RGB三色再现图像分量区域大小和成像中心的重合。基于空分复用的方法建立了彩色全息显示系统，最终的彩色全息显示系统利用空间光调制器加载计算生成的24 bit全息图再现彩色图像。实验结果验证了该方法的可行性。

Color holographic display is an important goal of holographic display research. Color holographic display technology using RGB lasers is studied, and color holographic display method based on space division multiplexing is proposed. Both the size and center of holographic optoelectronic reconstruction image depend on the wavelength of RGB lasers. The method by adjusting the original sizes of the RGB components of color images and adding digital blazed grating to achieve the coincidences of the sizes and centers of RGB reconstructed images is proposed. The color holographic display system with space division multiplexing method is developed, and hologram generated by 24-bit computer is added to spatial light modulator to reconstruct the color images by the advanced physics setup. Experimental results demonstrate the feasibility of the method proposed.