Imaging quality analysis of computer generated holograms in 3D holographic display using different Fresnel zone plates in look-up table

Hologram calculation of 3D object with look-up-table (LUT) method using Fresnel zone plate (FZP) is a typical and commonly used approach. However, the types of Fresnel zone plate (FZP) significantly affect the holographic imaging quality of 3D objects. This paper mainly analyzes the relationships between imaging quality and the modulation types of FZP. Simulation reconstruction and optoelectronic reconstruction results with amplitude-modulation type and phase-only modulation type of FZP show that, conjugate image exists in the imaging plane using amplitude-type FZP in LUT method. However, no conjugate image exists in the imaging plane using phase-type FZP in LUT method. The experimental results show that, compared to the amplitude-type FZP, the phase-type FZP is more suitable for improving the imaging quality of holographic 3D display.