Passive wavelength-division multiplexing (WDM) fiber-optic temperature sensor
US8201996B1 · kind B1 · utility
3Cited by
24References
8Claims
0Family size
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Key dates
| Filing date | Apr 24, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jun 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/3213
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A passive wavelength-division multiplexing fiber-optic temperature sensor, as well as a distributed fiber-optic temperature sensing system, incorporates at least one wavelength-division-multiplexing optical coupler, so that any given sensor interfaces optically by at least one designated optical wavelength, thus providing means for any given fiber-optic temperature sensor to be distinguished from other fiber-optic temperature sensors of similar design operating on the same optical fiber system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.