Mixing and modulating methods and structures using nonlinear optical amplifiers
US5859611A · kind A · utility
46Cited by
6References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Feb 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2676
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Mixing and modulating methods are described for nonlinear optical amplifiers (30) which can generate intermodulation products of radio-frequency signals in an optical carrier signal (26) without the penalty of an optical conversion loss and without the need for radio-frequency mixers, electro-optic modulators and expensive polarization-maintaining optical fibers. The radio-frequency signals can be applied to either a bias port (36) or an optical input port (32) of the optical amplifier and are used to upconvert and downconvert signals in phased-array antenna and remote antenna embodiments of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.