Introduction

Curtis, Kevin; Dhar, Lisa; Murphy, Liz

doi:10.1002/9780470666531.ch1

Cited by 1 publication

(2 citation statements)

References 29 publications

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“…From these detected boundary intensities, the signal phase was determined using Eqs. (1) or (2). PxER that is defined as the ratio of the number of incorrectly retrieved signal data pixels to the total number of signal data pixels, was calculated to verify the validity of our method.…”

Section: Simulation Methodsmentioning

confidence: 99%

“…Holographic data storage (HDS) is expected to have a larger capacity and higher transfer rate than the current optical disk systems including compact disks, digital versatile disks, and Blu-ray Disks. 1,2) In the HDS system, the storage density can be increased by various multiplexing methods such as angle multiplexing 3,4) and shift multiplexing. [5][6][7] Another method for increasing the data capacity is utilizing the multi-level signal [8][9][10] in which information is carried by each data pixel.…”

Section: Introductionmentioning

confidence: 99%

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Single-shot detection of four-level phase modulated signals using inter-pixel crosstalk for holographic data storage

Tokoro

Fujimura

2021

Jpn. J. Appl. Phys.

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We report a simple and stable phase detection method for holographic data storage systems. Our method needs only one image acquisition, and no additional light waves or interferometric measurements are required. The phase information is retrieved from intensities at pixel boundaries where inter-pixel crosstalk occurs owing to the spatial filtering in the Fourier plane of the input image. We numerically and experimentally demonstrate that our method can retrieve the phase signal with a sufficiently low error rate for holographic storage. We also compare the storage density of the proposed method to the conventional phase detection method.

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Section: Simulation Methodsmentioning

confidence: 99%