Holographic memory using beam steering
US7149014B2 · kind B2 · utility
6Cited by
1References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2004 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Apr 25, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method, apparatus, and system provide the ability for storing holograms at high speed. A single laser diode emits a collimated laser beam to both write to and read from a photorefractice crystal. One or more liquid crystal beam steering spatial light modulators (BSSLMs) or Micro-Electro-Mechanical Systems (MEMS) mirrors steer a reference beam, split from the collimated laser beam, at high speed to the photorefractive crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.