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  • Received: Aug. 3, 2020

    Accepted: Nov. 26, 2020

    Posted: Jan. 8, 2021

    Published Online: Jan. 8, 2021

    The Author Email: Fang Xinyuan (xinyuanfang@foxmail.com), Yang Haocheng (yhc44@qq.com), Yao Wenzhe (ywz.believe@qq.com), Wang Tianxin (tianxinwang@smail.nju.edu.cn), Zhang Yong (zhangyong@nju.edu.cn), Gu Min (gumin@usst.edu.cn), Xiao Min (mxiao@uark.edu)

    DOI: 10.1117/1.AP.3.1.015001

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    Xinyuan Fang, Haocheng Yang, Wenzhe Yao, Tianxin Wang, Yong Zhang, Min Gu, Min Xiao. High-dimensional orbital angular momentum multiplexing nonlinear holography[J]. Advanced Photonics, 2021, 3(1): 015001

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Advanced Photonics, Vol. 3, Issue 1, 015001 (2021)

High-dimensional orbital angular momentum multiplexing nonlinear holography

Xinyuan Fang1,2,†, Haocheng Yang1, Wenzhe Yao1, Tianxin Wang1, Yong Zhang1,*, Min Gu2, and Min Xiao1,3

Author Affiliations

  • 1Nanjing University, College of Engineering and Applied Sciences, School of Physics, National Laboratory of Solid State Microstructures, Nanjing, China
  • 2University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Centre for Artificial-Intelligence Nanophotonics, Shanghai, China
  • 3University of Arkansas, Department of Physics, Fayetteville, Arkansas, United States

Abstract

Nonlinear holography has been identified as a vital platform for optical multiplexing holography because of the appearance of new optical frequencies. However, due to nonlinear wave coupling in nonlinear optical processes, the nonlinear harmonic field is coupled with the input field, laying a fundamental barrier to independent control of the interacting fields for holography. We propose and experimentally demonstrate high-dimensional orbital angular momentum (OAM) multiplexing nonlinear holography to overcome this problem. By dividing the wavefront of the fundamental wave into different orthogonal OAM channels, multiple OAM and polarization-dependent holographic images in both the fundamental wave and second-harmonic wave have been reconstructed independently in the spatial frequency domain through a type-II second harmonic generation process. Moreover, this method can be easily extended to cascaded χ2 nonlinear optical processes for multiplexing in more wavelength channels, leading to potential applications in multicasting in optical communications, multiwavelength display, multidimensional optical storage, anticounterfeiting, and optical encryption.

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