Optical and Optoelectronic Interface Processing for Volume Optical Storage

摘要

Interfaces play an important role in the highly parallel data environment that characterizes volume (3D and 4D) optical storage. Previous work under AFOSR support has concerned error correction for use in such a parallel environment. The present work has focused instead on the 'analog' portion of the interface, on data detection and modulation codes. Our research efforts have produced several significant results: (1) A new nonlinear data detection algorithm that is suitable for use in the highly parallel data environment, (2) A thorough characterization of linear equalization methods for 2D coherent and incoherent channels, (3) A powerful new modulation code that can improve storage capacity as well as offer tolerance to 151 and other channel imperfections, and (4) An application of our unique information-theoretic formalism to the AFOSR- relevant spectral data storage application. This last item has not been reported in any previous technical report and the publication is therefore attached for completeness.