Distributed optical fiber sensor with controlled response
US7260283B2 · kind B2 · utility
9Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Feb 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/805
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Distributed fiber optic chemical and physical sensors provide a relatively highly uniform response over the length of the fiber by, for example, varying such properties as the core/cladding index of refraction ratio to compensate for the non-linearity in sensitivity due for example to the loss of higher order modes in multi-mode fibers. The variation of the ratio changes the absorption coefficient of the fiber and can be used to compensate for any non-linearity in response. Other techniques for compensation also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.