Integrated optic vector-matrix multiplier
US8027587B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | May 17, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vector-matrix multiplier is disclosed which uses N different wavelengths of light that are modulated with amplitudes representing elements of an N×1 vector and combined to form an input wavelength-division multiplexed (WDM) light stream. The input WDM light stream is split into N streamlets from which each wavelength of the light is individually coupled out and modulated for a second time using an input signal representing elements of an M×N matrix, and is then coupled into an output waveguide for each streamlet to form an output WDM light stream which is detected to generate a product of the vector and matrix. The vector-matrix multiplier can be formed as an integrated optical circuit using either waveguide amplitude modulators or ring resonator amplitude modulators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.