Kevin Richard Curtis

Holographic storage of multiple high-capacity digital data pages in thick photopolymer systems.

Multiple digital data pages (480 kbits per page) were holographically recorded and retrieved with low bit-error rates in thick (~250- and ~500-mum) photopolymer media. The photopolymer systems were fabricated with the optical quality and low level of scatter required for digital data storage. We believe that these results represent the first demonstration of holographic storage of high-capacity digital data pages in photopolymer media with the thickness that will be required for such storage densities.

High density, high performance optical data storage via volume holography: Viability at last?

The long held promise of using volume holography to deliver high performance optical storage is reviewed. The problems, which limited the development for many years, are accessed. Finally, we describe a series of innovations, which may make the technology viable at last.

Temperature Compensation Strategy for Holographic Storage

A strategy for finding the readout wavelength to compensate for temperature changes in holographic media is presented. Theory and experimental results for a 12 degC change at a data density of 95 Gbit/in2 are demonstrated

How to Write Good Books

We introduce two novel techniques enabling media-efficient recording allowing for more pages per book and decreasing the disk space needed by each book. We present explanations and experimental results including our latest density results

M/# Requirements for Holographic Data Storage

Achievable density in holographic storage is limited by the M/# of the medium. By estimating geometry-dependent factors and signal strength requirements, we determine the M/# needed for a target density for collinear and angle-polytopic architectures

Digital holographic data storage in photopolymer systems

We report on the holographic storage and recovery of multiple high capacity (800 X 600, 480 kbit) data pages in 250 micrometer and 500 micrometer thick photopolymer media. The data pages were recovered with raw bit error rates less than 5 X 10-3, the level correctable by current error correction strategies. Our results demonstrate that photopolymer systems can be fabricated with the optical quality and low level of scatter required for digital data storage.

Consumer Holographic ROM Reader with Mastering and Replication Technology

A novel holographic ROM design allows a compact low-cost consumer drive with lensless readout in a 10 mm drive height. A two-step mastering method enables high-efficiency holographic masters for fast replication using planewave illuminations

Photopolymer media for digital holographic data storage

We report on the holographic storage of multiple digital data pages in photopolymer media. The results demonstrate the potential of these materials for high density data storage.