Material saturation in photopolymer holographic data recording and its effects on bit-error-rate and content-addressable search

Das, Bhargab; Joseph, Joby; Singh, Kehar

doi:10.1016/j.optcom.2008.09.084

Cited by 12 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But, this modulation scheme produces a large DC term, that can saturate the dynamic range of the material [31] [32] , reducing the number of multiplexed pages that can be stored in the material. There are some techniques that can be applied to reduce this DC term, such as pseudorandom phase mask [33] or defocusing the recording plane [31] [33] . A solution is to use another modulation scheme such as Hybrid Ternary Modulation (HTM).…”

Section: Binary Intensity Modulationmentioning

confidence: 99%

Analysis of holographic data storage using a PA-LCoS device

Martínez-Guardiola

Márquez

Fenoll

et al. 2016

Optical Modelling and Design IV

View full text Add to dashboard Cite

Holographic data storage systems (HDSS) have been a promising and very appealing technology since the first laser developments in the sixties. Impact of ongoing advances in the various components needs to be explored in its specific application to HDSS. In this sense, continuous progress is being produced in spatial light modulator (SLM) technology where parallel-addressed liquid crystal on silicon (PA-LCoS) microdisplays have replaced previous liquid-crystal displays (LCD) in most of optics and photonics applications. PA-LCoS microdisplays are well adapted to display phaseonly elements without coupled amplitude. In this paper, we analyse how PA-LCoS devices can also be used to display the widely applied binary intensity modulated (BIM) data pages. We also investigate hybrid-ternary modulated (HTM) data pages, which are very much demanding on the phase and amplitude modulation properties of an SLM. HTM data pages combine the ease of detection of BIM data pages, together with a large reduction of the DC term of the Fourier Transform of the data page. This reduction is necessary to avoid saturation of the recording material dynamic range. Simulated results show the magnitude of the expected DC term in the Fourier plane. We have verified the good performance of PA-LCoS to display BIM data pages. We have also obtained that pure HTM data pages cannot be produced with PA-LCoS devices, however, a rather close performance is obtained when implementing the pseudo-HTM data pages. In this work a more complete study of pseudo-HTM modulation is offered.

show abstract

Section: Binary Intensity Modulationmentioning

confidence: 99%

Analysis of holographic data storage using a PA-LCoS device

Martínez-Guardiola

Márquez

Fenoll

et al. 2016

Optical Modelling and Design IV

View full text Add to dashboard Cite

show abstract

“…More conventional binary intensity modulated (BIM) data pages can also be addressed with PA-LCoS devices as we will show in the paper. They produce large DC terms, saturating the dynamic range of the material [10,11], if no pseudo-random phase masks [12] or defocus of the recording plane [10,13] is implemented. The main benefit of BIM is that it needs a simple on-off intensity detection system.…”

Section: Introductionmentioning

confidence: 99%

Exploring binary and ternary modulations on a PA-LCoS device for holographic data storage in a PVA/AA photopolymer

Martínez-Guardiola¹,

Fernández²,

Márquez³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

We focus on the novelty of three elements in holographic data storage systems (HDSS): the data pager, where we introduce a parallel-aligned liquid crystal on silicon (PA-LCoS) microdisplay; the recording material, where we consider the highly versatile PVA/AA photopolymer; and also in the architecture of the object arm, where a convergent correlator system is introduced. We show that PA-LCoS devices cannot implement pure hybrid-ternary modulated (HTM) data pages but a rather close approximation. Validation of the HDSS expressions for the convergent correlator and comparison with the widespread 4-f system is performed. Experimental results with PVA/AA material showing bit-error rates (BER) in the range of 10^-3, further show its potential application for HDSS, and also demonstrate the validity of the testing platform and PA-LCoS calibration and optimization.

show abstract

“…The main advantage of Hybrid-Ternary Modulation (HTM) is that it is possible to minimize the DC-term [22] while maintaining the straightforward direct intensity detection scheme used in BIM. HTM has been demonstrated and analysed with twisted-nematic LCDs [23] .…”

Section: Hybrid Ternary Modulationmentioning

confidence: 99%

PVA/AA photopolymers and PA-LCoS devices combined for holographic data storage

et al. 2016

View full text Add to dashboard Cite

Sponsored and Published by SPIEDownloadedThe papers in this volume were part of the technical conference cited on the cover and title page. Papers were selected and subject to review by the editors and conference program committee. Some conference presentations may not be available for publication. Additional papers and presentation recordings may be available online in the SPIE Digital Library at SPIEDigitalLibrary.org.The papers reflect the work and thoughts of the authors and are published herein as submitted. The publisher is not responsible for the validity of the information or for any outcomes resulting from reliance thereon. Copying of material in this book for internal or personal use, or for the internal or personal use of specific clients, beyond the fair use provisions granted by the U.S. Copyright Law is authorized by SPIE subject to payment of copying fees. The Transactional Reporting Service base fee for this volume is $18.00 per article (or portion thereof), which should be paid directly to the Copyright Clearance Center (CCC), 222 Rosewood Drive, Danvers, MA 01923. Payment may also be made electronically through CCC Online at copyright.com. Other copying for republication, resale, advertising or promotion, or any form of systematic or multiple reproduction of any material in this book is prohibited except with permission in writing from the publisher. The CCC fee code is 0277-786X/16/$18.00.Printed in the United States of America.Publication of record for individual papers is online in the SPIE Digital Library. SPIEDigitalLibrary.orgPaper Numbering: Proceedings of SPIE follow an e-First publication model. A unique citation identifier (CID) number is assigned to each article at the time of publication. Utilization of CIDs allows articles to be fully citable as soon as they are published online, and connects the same identifier to all online and print versions of the publication. SPIE uses a six-digit CID article numbering system structured as follows:The first four digits correspond to the SPIE volume number. The last two digits indicate publication order within the volume using a Base 36 numbering system employing both numerals and letters. These two-number sets start with 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B … 0Z, followed by 10-1Z, 20-2Z, etc. The CID Number appears on each page of the manuscript. SESSION 2 HOLOGRAPHY AND SYSTEMS 07Layer-oriented computer-generated holograms for three-dimensional display 9970 08 PVA/AA photopolymers and PA-LCoS devices combined for holographic data storage 9970 09 Graphene oxide doped PDLC films for all optically controlled light valve structures 9970 0A Quality investigation of surface mount technology using phase-shifting digital holography 9970 0B A holographic display system based on DMD using LED as light source SESSION 3 OPTICAL IMAGING AND PROCESSING I 0CQuality metric for spherical panoramic video 9970 0D Focal length evaluation by inverse ray-tracing Ronchi test ABSTRACTWe introduce a polyvinil alcohol/acrylamide (PVA/AA) photopol...

show abstract

Material saturation in photopolymer holographic data recording and its effects on bit-error-rate and content-addressable search

Cited by 12 publications

References 27 publications

Analysis of holographic data storage using a PA-LCoS device

Analysis of holographic data storage using a PA-LCoS device

Exploring binary and ternary modulations on a PA-LCoS device for holographic data storage in a PVA/AA photopolymer

PVA/AA photopolymers and PA-LCoS devices combined for holographic data storage

Contact Info

Product

Resources

About