Ultrafast digital optical signal processing using a Venn diagram based spatial encoding technique
US5136530A · kind A · utility
Inventors
Key dates
| Filing date | Jul 26, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Jul 26, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06E1/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An ultrafast digital optical signal processor includes a body of a third order nonlinear material and three input beams, two beams counterproprogating in the material on-axis and the third beam propagating off-axis, all simultaneously, to generate an output beam that counterpropogates with respect to the off-axis input beams. A set of three voltage controlled spatial light modulators are used for encoding the three input beams in accordance with a three-set Venn diagram based encoding scheme. The output beam is split into two parts which are decoded separately using a mask for one beam part and a spatial light modulator for the other beam part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.