Optical transmission system
US4533247A · kind A · utility
177Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1982 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Aug 23, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B14/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical transmission system comprises a light source, which may be coherent or incoherent, a first optical interferometer wherein light from the source is modulated, an optical path, which may be either free space or an optical fiber, along which the modulated output of the first interferometer is propagated, a second interferometer wherein light received from the optical path is demodulated, and a photodetector to which the demodulated output is applied. Typically the first interferometers is a Fabry-Perot etalon, the length of the resonant cavity of which can be altered to modulate light applied thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.