Fiber optic sensor for detecting multiple parameters in a harsh environment
AssigneeGeneral Electric Company
InventorsHua Xai, Mahadevan Balasubramaniam, Jie Jiang, Huageng Luo, Abdul Rahman Abdallah Al-Khalidy, Clayton Ming Young, Kevin Thomas McCarthy
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Abstract
A fiber optic sensor is provided. The fiber optic sensor includes a fiber core having a plurality of Bragg grating elements wherein, the grating elements comprise a periodic or a quasiperiodic modulated microcrystalline and rigid silicon dioxide tetrahedral structure and a cladding disposed about the fiber core.
Claims33
A fiber optic sensor, comprising:
- a fiber core having a plurality of Bragg grating elements wherein, the grating elements comprise a periodic or a quasiperiodic modulated microcrystalline and rigid silicon dioxide tetrahedral structure;
- and
- a cladding disposed about the fiber core.
A method of fabricating a fiber optic sensor, comprising:
- providing a fiber core;
- inscribing a periodic or a quasiperiodic microcrystalline silicon dioxide tetrahedral grating structure on the fiber core;
- and
- converting an under-constrained silicon dioxide structure to an over-constrained silicon dioxide tetrahedral structure.
A method of detecting a plurality of parameters in an environment, comprising:
- providing a source of light to a fiber optic sensor having a plurality of grating elements with a periodic or a quasiperiodic modulated microcrystalline and rigid silicon dioxide tetrahedral structure;
- and
- detecting reflection or transmission spectra from the fiber optic sensors.
A distributed sensing system for sensing a plurality of parameters in an environment, comprising:
- a plurality of sensors disposed on a distributed cable, wherein each of the plurality of sensors comprises:
- a fiber core having a periodic or a quasiperiodic modulated microcrystalline and rigid silicon dioxide tetrahedral grating structure;
- and
- a cladding disposed about the fiber core.
Dependencies are inferred from the claim text.