Speckle reduction method for holographic display based on optimized phase modulation

Lizhi Chen; Hao Zhang; Liangcai Cao; Guofan Jin

doi:10.1117/12.2573454

10 October 2020 Speckle reduction method for holographic display based on optimized phase modulation

Lizhi Chen, Hao Zhang, Liangcai Cao, Guofan Jin

Proceedings Volume 11551, Holography, Diffractive Optics, and Applications X; 1155112 (2020) https://doi.org/10.1117/12.2573454
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

We present a speckle reduction method to generate phase holograms with high-quality optical reconstruction based on optimized phase modulation. An initial phase with continuous and band-limited spectrum is utilized to iteratively optimize the phase modulation in the image plane. The optimized phase is used to modulate the object wave field, and the phase hologram is then calculated from the modulated object wave field. Phase distribution of the reconstructed image with our method is smoothly distributed and contains less phase singularities, which helps to reduce speckle noise in optical reconstruction. The proposed method can improve the reconstruction quality effectively, and eliminate the speckle noise induced by the random diffuse phase.

Conference Presentation

Citation Download Citation

Lizhi Chen, Hao Zhang, Liangcai Cao, and Guofan Jin "Speckle reduction method for holographic display based on optimized phase modulation", Proc. SPIE 11551, Holography, Diffractive Optics, and Applications X, 1155112 (10 October 2020); https://doi.org/10.1117/12.2573454

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