Single beam setup for holographic digital disc

摘要

Volume holographic digital data storage has many performance characteristics including large storage capacity and high transfer rate. But there are some problems in the commercial applications for holographic digital disc of volume holographic digital data storage. A single beam setup is introduced in this article for holographic digital disc. In this new system, the reference beam and the information beam are coaxially arranged to perform reading and writing. This new single beam setup can reduce the complexity, the demand for mechanical precision, the size and cost of the conventional holographic digital storage setup using dual beams. And it is also compatible with the conventional optical disk technologies.