Sensing a disturbance
US7817279B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Sep 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method of sensing a disturbance along an optical link including the steps of: using a first interferometer arrangement connected to an optical source so as to generate pairs of signal copies, which signal copies of a given pair are temporally delayed relative to one another; transmitting the time-displaced signal copies from the first interferometer arrangement onto the optical link; receiving the time-displaced signal copies transmitted over the optical link; and, using a second interferometer arrangement to temporally recombine the received signal copies from a given pair so as to generate an interferometer signal, which interferometer signal is representative of environmental effects on the optical link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.