Optical synapses
US11562221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C13/0069
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical synapse comprises a memristive device for non-volatile storage of a synaptic weight dependent on resistance of the device, and an optical modulator for volatile modulation of optical transmission in a waveguide. The memristive device and optical modulator are connected in control circuitry which is operable, in a write mode, to supply a programming signal to the memristive device to program the synaptic weight and, in a read mode, to supply an electrical signal, dependent on the synaptic weight, to the optical modulator whereby the optical transmission is controlled in a volatile manner in dependence on programmed synaptic weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.