Interferometric system with multiaxial optical fibre and method for processing an interferometric signal in such a system
US9823076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29347
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric system with multi-axis optical fiber and a method for processing an interferometric signal in such a system, the multi-axis interferometric system includes a light source (1); a plurality of N optical-fiber coils (11, 12), a first optical separation element (3) capable of splitting the source beam (100) into a first split beam (140) and a second split beam (240); shared phase-modulation element (4); a photodetector (2) and a signal-processing system (800). The N optical-fiber coils (11, 12) are connected in parallel, the coils having respective transit times T1, T2, . . . TN that all differ from one another, and the signal-processing system (800) is capable of processing the interferometric signal (720) detected by the shared photodetector (2) as a function of the respective transit times in the various coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.