Integrated optical matrix multiplier
US4125316A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1977 |
| Grant date | Nov 14, 1978 |
| Priority date | — |
| Expiry date | May 23, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F3/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide of photoconductive material is positioned parallel to t least one other optical waveguide of electrooptical material. A first electrode is positioned between the two optical waveguides and second and third electrodes are positioned contiguous to the optical waveguides and opposite the first electrode. A constant amplitude electrical source is connected to the second and third electrodes and when light energy signals representative of a column vector function are propagated along the photoconductive optical waveguide, a commensurate change of conductivity between the first and second electrodes is caused to occur with a consequent change in electrical potential across the second and third electrodes embracing the optical waveguide of electrooptic material. When light energy signals representative of a row vector function are propagated along the second optical waveguide, a polarizatin modulated output signal is developed by the second optical waveguide. A polarization analyzer of the filter or polarization discriminator type intercepts the polarization modulated output light signals of the second optical waveguide and an integrating storage detector responds to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.