Expanding angular bandwidth of augmented reality coupling element volume holographic grating by multiplexing equal-period and variable-inclination-angle interference fringes

doi:10.37188/CO.2023-0050

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Expanding angular bandwidth of augmented reality coupling element volume holographic grating by multiplexing equal-period and variable-inclination-angle interference fringes
	C.-F. Peng, W.-H. Li, W. Zhang, X.-S. Chen, R. Liu, J.-Y. Zhang and W.-L. Li
刊名	Chinese Optics
	2023
卷号	16 页码:1-11
ISSN号	20971842
DOI	10.37188/CO.2023-0050
英文摘要	In order to improve the field of view of the near to eye display imaging system based on optical waveguide scheme, this paper proposes a method of multiplexing interference fringes with equal period and variable inclination angles to expand the angular bandwidth of the volume holographic grating for augmented reality glasses coupling element. The range of incident angles after extended matches the Bragg condition in this method, and the equal period on the surface of the volume holographic grating eliminates the influence of the periodic change to the diffraction angle of the incident light, thereby improving the angular response range of the coupling element volume holographic grating and reducing the stray light introduced by grating diffraction. The rigorous coupled wave analysis theory is used to simulate the volume holographic grating multiplexing three interference fringes with equal period and variable inclination angles. Under the TE and TM polarization states with a wavelength at 530 nm, the angular bandwidth of the multiplexed volume holographic grating is 3.6° and 3.3°, respectively. The angular bandwidth of the multiplexed volume holographic grating is twice as large as that of the volume holographic grating recorded one single interference fringe. This method is expected to break the limitation of volume holographic grating material on grating angular bandwidth and can be used to expand the field of view of the near to eye display imaging system to achieve lightweight, high efficiency, large field of view, and low stray light augmented reality glasses. © 2023 Editorial Office of Chinese Optics. All rights reserved.
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内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67786]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C.-F. Peng, W.-H. Li, W. Zhang, X.-S. Chen, R. Liu, J.-Y. Zhang and W.-L. Li. Expanding angular bandwidth of augmented reality coupling element volume holographic grating by multiplexing equal-period and variable-inclination-angle interference fringes[J]. Chinese Optics,2023,16:1-11.
APA	C.-F. Peng, W.-H. Li, W. Zhang, X.-S. Chen, R. Liu, J.-Y. Zhang and W.-L. Li.(2023).Expanding angular bandwidth of augmented reality coupling element volume holographic grating by multiplexing equal-period and variable-inclination-angle interference fringes.Chinese Optics,16,1-11.
MLA	C.-F. Peng, W.-H. Li, W. Zhang, X.-S. Chen, R. Liu, J.-Y. Zhang and W.-L. Li."Expanding angular bandwidth of augmented reality coupling element volume holographic grating by multiplexing equal-period and variable-inclination-angle interference fringes".Chinese Optics 16(2023):1-11.