Imaging Components, Systems, and Processing

Speckle noise suppression method in holographic display using time multiplexing

[+] Author Affiliations
Su-Juan Liu, Di Wang, Song-Jie Li

Sichuan University, School of Electronics and Information Engineering, Chengdu, China

Qiong-Hua Wang

Sichuan University, School of Electronics and Information Engineering, Chengdu, China

Fuzhou University, Haixi Collaborative Innovation Center for New Display Devices and Systems Integration, Fuzhou, China

Opt. Eng. 56(6), 063107 (Jun 29, 2017). doi:10.1117/1.OE.56.6.063107
History: Received April 10, 2017; Accepted June 13, 2017
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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.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Su-Juan Liu ; Di Wang ; Song-Jie Li and Qiong-Hua Wang
"Speckle noise suppression method in holographic display using time multiplexing", Opt. Eng. 56(6), 063107 (Jun 29, 2017). ; http://dx.doi.org/10.1117/1.OE.56.6.063107


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