Optical logic gate
US7925131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2005 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Dec 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3519
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical logic gate (10) comprises: first and second optical inputs (11, 12) for receiving respective optical signals (A, B) and an optical output (15) for outputting an optical signal (Pout) which represents the result of applying a required logic function. The logic gate is characterized by optical combining means (13) for combining the optical signals to produce a corresponding combination signal whose power (Pi) is the combination of the powers (PA, PB) of the optical signals and non-linear optical means (14) for receiving the combination signal (Pi) and emitting the optical output signal (Pout) the logic function depending on the characteristic of the non-linear optical means wherein the characteristic is selected such that the power of the output signal is correlated to the power of the combination signal by the selected logic function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.