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P‐91: Speckle‐Reduced Holographic Display Demonstrated by Complex Modulation Based on a Double‐Phase Method
Author(s) -
Qi Yijun,
Chang Chenliang,
Xia Jun
Publication year - 2017
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.11965
Subject(s) - speckle pattern , holography , optics , spatial light modulator , holographic display , phase (matter) , plane (geometry) , modulation (music) , filter (signal processing) , grating , amplitude , spatial filter , amplitude modulation , physics , spatial frequency , computer science , frequency modulation , mathematics , computer vision , acoustics , telecommunications , geometry , bandwidth (computing) , quantum mechanics
This study is aimed to implement speckle reduced three‐dimensional (3‐D) holographic display by single phase‐only spatial light modulator (SLM) based on complex modulation. To suppress noises and higher order diffractions, we introduced a 4‐f system with a filter at the frequency plane. A blazing grating is exploited to separate the complex amplitude on the frequency plane. The results verify that this method can effectively reduce the speckle in the reconstruction in 3‐D holographic display.