Optical multiplexing
US5113458A · kind A · utility
6Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1991 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Apr 11, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical multiplexing system has a source of depolarized radiation at one end of a non-birefringent optical fiber that extends to a decoding interferometer. Sensors in series along the fiber induce birefringence so that the radiation is superimposed onto two polarization modes producing two output wave trains from each sensor with different time separations. The interferometer measures the time separations of the wave trains to identify the sensor and its output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.