The requirements and limitations on the use of a volume holographic element for the simultaneous optical stamping of multilayer data into a three-dimensional (3D) bit-oriented material that exhibits a suitable sensitivity threshold are investigated. The expected performance of such a holographic stamping element is examined through a model of the coherent noise effects that result from the interference of the many data layers with one another. We show that higher signal-to-noise values may be achieved through the use of semicoherent light during the readout of the hologram. The main limitations to this technique arise from the bandwidth requirements on the holographic element, the degree of nonlinearity required of the bit-oriented media, and the tolerance requirements for the optical exposure levels. As a demonstration of the concept, a two-layer stamping element is fabricated and used to simultaneously stamp two layers of data into a 3D dye-doped photopolymer storage medium.
© 2000 Optical Society of America
[Optical Society of America ]
(030.0030) Coherence and statistical optics : Coherence and statistical optics
(090.2890) Holography : Holographic optical elements
(090.7330) Holography : Volume gratings
(210.0210) Optical data storage : Optical data storage
Mark M. Wang and Sadik C. Esener, "Three-Dimensional Holographic Stamping of Multilayer Bit-Oriented Nonlinear Optical Media," Appl. Opt. 39, 1835-1841 (2000)