Phase retrieval by aberration compensation in holographic data storage

Suping Wang; Changyu Yu; Ruixian Chen; Jianying Hao; Qijing Zheng; Jinyu Wang; Xianying Qiu; Dakui Lin; Yi Yang; Hui Li; Xiao Lin; Xiaodi Tan

doi:10.1117/12.2616180

27 October 2021 Phase retrieval by aberration compensation in holographic data storage

Suping Wang, Changyu Yu, Ruixian Chen, Jianying Hao, Qijing Zheng, Jinyu Wang, Xianying Qiu, Dakui Lin, Yi Yang, Hui Li, Xiao Lin, Xiaodi Tan

Author Affiliations +

Proceedings Volume 11926, Optical Manipulation and Structured Materials Conference 2021; 119261A (2021) https://doi.org/10.1117/12.2616180
Event: SPIE Technologies and Applications of Structured Light, 2021, Online, Japan

Abstract

The phase holographic storage system is different from the traditional object -image corresponding imaging. Because of the particularity of phase, it is not easy to be captured by the traditional detector. Therefore, the Fourier lens is used for Fourier transform to image it on the Fourier plane. The Fourier intensity is detected and the phase is recovered iteratively by using the iterative Fourier transform algorithm. Due to the existence of aberrations, the wavefront phase will be affected and the phase will be distorted.In this paper, we mainly study the influence of spherical aberration on phase transformation. By establishing the light field with wavefront aberration, we study the influence of wavefront aberration on phase recovery and propose the image restoration algorithm for aberration compensation .The feasibility of the theory is proved.

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Suping Wang, Changyu Yu, Ruixian Chen, Jianying Hao, Qijing Zheng, Jinyu Wang, Xianying Qiu, Dakui Lin, Yi Yang, Hui Li, Xiao Lin, and Xiaodi Tan "Phase retrieval by aberration compensation in holographic data storage", Proc. SPIE 11926, Optical Manipulation and Structured Materials Conference 2021, 119261A (27 October 2021); https://doi.org/10.1117/12.2616180

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KEYWORDS

Monochromatic aberrations

Holography

Imaging systems

Data storage

Optical storage

Diffraction

Phase retrieval

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