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Optical Engineering

Speckle noise suppression method in holographic display using time multiplexing
Author(s): Su-Juan Liu; Di Wang; Song-Jie Li; Qiong-Hua Wang
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Paper Abstract

We propose a method to suppress the speckle noise in holographic display using time multiplexing. The diffractive optical elements (DOEs) and the subcomputer-generated holograms (sub-CGHs) are generated, respectively. The final image is reconstructed using time multiplexing of the subimages and the final subimages. Meanwhile, the speckle noise of the final image is suppressed by reducing the coherence of the reconstructed light and separating the adjacent image points in space. Compared with the pixel separation method, the experiments demonstrate that the proposed method suppresses the speckle noise effectively with less calculation burden and lower demand for frame rate of the spatial light modulator. In addition, with increases of the DOEs and the sub-CGHs, the speckle noise is further suppressed.

Paper Details

Date Published: 29 June 2017
PDF: 5 pages
Opt. Eng. 56(6) 063107 doi: 10.1117/1.OE.56.6.063107
Published in: Optical Engineering Volume 56, Issue 6
Show Author Affiliations
Su-Juan Liu, Sichuan Univ. (China)
Di Wang, Sichuan Univ. (China)
Song-Jie Li, Sichuan Univ. (China)
Qiong-Hua Wang, Sichuan Univ. (China)
Fuzhou Univ. (China)


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