Double side band, carrier suppressed modulated coherent fiber optic link
US6115162A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for conveying a signal by optical fiber may include a converter for converting a radio frequency signal to an optical frequency signal, the converter having an interferometer modulator for providing a carrier suppressed optical frequency signal having a sideband modulated by the radio frequency signal, an optical amplifier for amplifying the modulated sideband before transmission on an optical fiber by an amount that is greater than or approximates the transmission loss in the system, a local oscillator, a coupler, and detector for converting (superheterodyning) the modulated sideband from the optical fiber to a predetermined intermediate radio frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.