標題: Astigmatism correction and quality optimization of computer-generated holograms for holographic waveguide displays
作者: Lin, Wen-Kai
Matoba, Osamu
Lin, Bor-Shyh
Su, Wei-Chia
光電學院
College of Photonics
公開日期: 17-Feb-2020
摘要: In this manuscript, the astigmatism of the waveguide combiner with a pair of symmetry HOEs was analyzed. The light field can be predicted by the modified convolution formulation of Fresnel diffraction when the information of light passes through the astigmatism causing element. Then the astigmatism can be corrected. The theory was experimentally proved by the system with a phase-only SLM and a diffraction planar waveguide. Furthermore, the image quality of astigmatism corrected phase-type CGHs can be improved via the iteration process. Since the coherence of light source was employed, the temporal averaging method was utilized to avoid speckle noise. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URI: http://dx.doi.org/10.1364/OE.381193
http://hdl.handle.net/11536/154167
ISSN: 1094-4087
DOI: 10.1364/OE.381193
期刊: OPTICS EXPRESS
Volume: 28
Issue: 4
起始頁: 5519
結束頁: 5527
Appears in Collections:Articles