Anamorphic and Local Characterization of a Holographic Data Storage System with a Liquid-Crystal on Silicon Microdisplay as Data Pager

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Title: Anamorphic and Local Characterization of a Holographic Data Storage System with a Liquid-Crystal on Silicon Microdisplay as Data Pager
Authors: Martínez Guardiola, Francisco Javier | Márquez, Andrés | Calzado Estepa, Eva María | Bleda, Sergio | Gallego, Sergi | Pascual, Inmaculada | Beléndez, Augusto
Research Group/s: Holografía y Procesado Óptico | Física de la Materia Condensada
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Keywords: Holographic data storage | Holographic and volume memories | Parallel-aligned | Liquid-crystal on silicon | Liquid crystals | Spatial light modulator | Photopolymers
Knowledge Area: Física Aplicada | Óptica | Teoría de la Señal y Comunicaciones
Date Created: 8-May-2018
Issue Date: 15-Jun-2018
Publisher: MDPI
Citation: Martínez-Guardiola FJ, Márquez A, Calzado EM, Bleda S, Gallego S, Pascual I, Beléndez A. Anamorphic and Local Characterization of a Holographic Data Storage System with a Liquid-Crystal on Silicon Microdisplay as Data Pager. Applied Sciences. 2018; 8(6):986. doi:10.3390/app8060986
Abstract: In this paper, we present a method to characterize a complete optical Holographic Data Storage System (HDSS), where we identify the elements that limit the capacity to register and restore the information introduced by means of a Liquid Cristal on Silicon (LCoS) microdisplay as the data pager. In the literature, it has been shown that LCoS exhibits an anamorphic and frequency dependent effect when periodic optical elements are addressed to LCoS microdisplays in diffractive optics applications. We tested whether this effect is still relevant in the application to HDSS, where non-periodic binary elements are applied, as it is the case in binary data pages codified by Binary Intensity Modulation (BIM). To test the limits in storage data density and in spatial bandwidth of the HDSS, we used anamorphic patterns with different resolutions. We analyzed the performance of the microdisplay in situ using figures of merit adapted to HDSS. A local characterization across the aperture of the system was also demonstrated with our proposed methodology, which results in an estimation of the illumination uniformity and the contrast generated by the LCoS. We show the extent of the increase in the Bit Error Rate (BER) when introducing a photopolymer as the recording material, thus all the important elements in a HDSS are considered in the characterization methodology demonstrated in this paper.
Sponsor: This was supported by Ministerio de Economía, Industria y Competitividad (Spain) under projects FIS2017-82919-R (MINECO/AEI/FEDER, UE) and FIS2015-66570-P (MINECO/FEDER), Generalitat Valenciana (Spain) under project PROMETEO II/2015/015 and Universidad de Alicante (Spain) under project GRE17-06.
ISSN: 2076-3417
DOI: 10.3390/app8060986
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 by the authors; Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (
Peer Review: si
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INV - Física de la Materia Condensada - Artículos de Revistas

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