Apparatus and method for elimination of polarization-induced fading in fiber-optic sensor system
US9009003B1 · kind B1 · utility
7Cited by
15References
15Claims
0Family size
Assignee
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Key dates
| Filing date | May 3, 2012 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Nov 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/35383
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is an apparatus and method of eliminating polarization-induced fading in interferometric fiber-optic sensor system having a wavelength-swept laser optical signal. The interferometric return signal from the sensor arms are combined and provided to a multi-optical path detector assembly and ultimately to a data acquisition and processing unit by way of a switch that is time synchronized with the laser scan sweep cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.