title: Exploring binary and ternary modulations on a PA-LCoS device for holographic data storage in a PVA/AA photopolymer.
abstract: 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.
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Martínez
authors.forename: Roberto
authors.initials: R
authors.lastname: Fernández
authors.forename: Andrés
authors.initials: A
authors.lastname: Márquez
authors.forename: Sergi
authors.initials: S
authors.lastname: Gallego
authors.forename: Mariela L
authors.initials: ML
authors.lastname: Álvarez
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Pascual
authors.forename: Augusto
authors.initials: A
authors.lastname: Beléndez