Improved phase retrieval in holographic data storage based on a designed iterative embedded data

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

doi:10.1007/s12200-021-1218-0

Improved phase retrieval in holographic data storage based on a designed iterative embedded data

Front Optoelectron. 2021 Dec;14(4):529-539. doi: 10.1007/s12200-021-1218-0. Epub 2021 Jun 29.

Authors

Changyu Yu¹, Suping Wang¹, Ruixian Chen¹, Jianying Hao¹, Qijing Zheng¹, Jinyu Wang¹, Xianying Qiu¹, Kun Wang^{1

2}, Dakui Lin¹, Yi Yang¹, Hui Li^{1

3}, Xiao Lin^{4

5}, Xiaodi Tan⁶

Affiliations

¹ Information Photonics Research Center, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, 350117, China.
² Fujian Provincial Key Laboratory of Photonics Technology, Fuzhou, 350117, China.
³ Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fuzhou, 350117, China.
⁴ Information Photonics Research Center, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, 350117, China. xiaolin@fjnu.edu.cn.
⁵ Wuhan National Laboratory for Optoelectronics, Wuhan, 430074, China. xiaolin@fjnu.edu.cn.
⁶ Information Photonics Research Center, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, 350117, China. xtan@fjnu.edu.cn.

Abstract

Embedded data are used to retrieve phases quicker with high accuracy in phase-modulated holographic data storage (HDS). We propose a method to design an embedded data distribution using iterations to enhance the intensity of the high-frequency signal in the Fourier spectrum. The proposed method increases the antinoise performance and signal-to-noise ratio (SNR) of the Fourier spectrum distribution, realizing a more efficient phase retrieval. Experiments indicate that the bit error rate (BER) of this method can be reduced by a factor of one after 10 iterations.

Keywords: embedded data; high frequency; holographic data storage (HDS); phase retrieval.