Anamorphic characterization of a PA-LCoS based holographic data storage system

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Title: Anamorphic characterization of a PA-LCoS based holographic data storage system
Authors: Martínez Guardiola, Francisco Javier | Márquez, Andrés | Calzado Estepa, Eva María | Fernandez, Roberto | Neipp, Cristian | Ortuño, Manuel | Pascual, Inmaculada | Gallego, Sergi
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: Liquid-crystal devices | Parallel-aligned | Holographic optical elements | Spatial light modulators | Optical processing | Holographic and volume memories
Knowledge Area: Física Aplicada | Óptica
Date Created: Jun-2018
Issue Date: 8-Sep-2018
Publisher: SPIE, The International Society for Optics and Photonics
Citation: Francisco J. Martínez-Guardiola, Francisco J. Martínez-Guardiola, Andrés Márquez, Andrés Márquez, Eva M. Calzado, Eva M. Calzado, Roberto Fernández, Roberto Fernández, Cristian Neipp, Cristian Neipp, Manuel Ortuño, Manuel Ortuño, Inmaculada Pascual, Inmaculada Pascual, Sergi Gallego, Sergi Gallego, } "Anamorphic characterization of a PA-LCoS based holographic data storage system", Proc. SPIE 10751, Optics and Photonics for Information Processing XII, 1075112 (7 September 2018); doi: 10.1117/12.2321276;
Abstract: We have included a Parallel Aligned Liquid Crystal on Silicon (PA-LCoS) microdisplay in a Holographic Data Storage System (HDSS). This novel display, widely accepted as Spatial Light Modulator (SLM), presents some advantages and disadvantages. One of these disadvantages is the anamorphic and frequency dependent effect. In this work we want to test this effect and see its effects in the complete optical process involved in the HDSS. We will use stripe-based patterns with different orientation (vertical and horizontal). To check the limits, we will increase the data density by decreasing the minimum stripe width. For evaluating the degradation suffered by the data page, we use the Bit Error Rate (BER) as figure of merit. We make a BER calculation from the statistical analysis of the histogram. In addition to the anamorphic effects we evaluate the degradation effects introduced by the non-uniformity in the illumination. To this goal we divide the image in several regions that are processed in the same way that the entire image. The error analysis of the entire optical system is useful for its calibration and fine adjustment. Once we have characterized the experimental setup we introduce the holographic material. Thus, by making the same analysis, we can evaluate the errors introduced by the material. As holographic material we use Polyvinyl Alcohol Acrylamide (PVA/AA), that has been characterized and developed in previous works by our group.
Sponsor: This work 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), by Generalitat Valenciana (Spain) under project PROMETEO II/2015/015 and by Universidad de Alicante under project GRE17-06.
ISBN: 978-151-06-2073-5
ISSN: 0277-786X | 1996-756X (Online)
DOI: 10.1117/12.2321276
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 2018 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 10751, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Peer Review: si
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