Frequency correlator having a non-linear optical fiber
US5298740A · kind A · utility
7Cited by
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6Claims
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Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06E3/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-linear optical fiber receives two light waves by its two ends, each light wave being modulated by means of two modulators. These light waves create photoinduced index variations in the fiber which are proportional to the intensity of the optical field. A reading source emits a reading wave in the fiber. This reading wave is reflected at least partially by the index variation or variations. A detector receives the reflected wave and makes it possible, through the computation of the returning time of the wave, to determine the position of the index variations. Applications: very wide passband signal correlators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.