Sensing systems and few-mode optical fiber for use in such systems
US8948550B2 · kind B2 · utility
17Cited by
16References
20Claims
0Family size
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Key dates
| Filing date | Feb 21, 2012 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Feb 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02009
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensing optical fiber comprising: a few-moded multi-segment core, said core comprising one core segment surrounded by another core segment, and at least one cladding surrounding said core; said core having an F factor (μm2) of 100 μm2 to 350 μm2, and is constructed to provide (i) an overlap integral between the fundamental optical guided mode and the fundamental acoustic guided mode of greater than 0.7 and (ii) the overlap integral between the LP11 optical guided mode and the fundamental acoustic guided mode at least 0.45.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.