Abstract
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.
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