Unfiltered holography: optimizing high diffraction orders without optical filtering for compact holographic displays

LETO / LETO-3 Spatial Light Modulators
Adaptive Optics / Wavefront Control AR/VR/MR / Holographic Display Digital-/ Computer Holography/ CGH
Published on:
Authors: Gopakumar, Manu; Kim, Jonghyun; Choi, Suyeon; Peng, Yifan & Wetzstein, Gordon
Abstract:
“Computer-generated holography suffers from high diffraction orders (HDOs) created from pixelated spatial light modulators, which must be optically filtered using bulky optics. Here, we develop an algorithmic framework for optimizing HDOs without optical filtering to enable compact holographic displays. We devise a wave propagation model of HDOs and use it to optimize phase patterns, which allows HDOs to contribute to forming the image instead of creating artifacts. The proposed method significantly outperforms previous algorithms in an unfiltered holographic display prototype.”

Open Access

Publication: Optics Letters
Issue/Year: Optics Letters, Volume 46; Number 23; Pages 5822; 2021
DOI: 10.1364/ol.442851
Link: https://doi.org/10.1364/ol.442851

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