POLYMER COATED OPTICAL FIBER
First Claim
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1. A sensor system comprising:
- a coated optical fiber, wherein the coated optical fiber comprises an optical fiber having a polymeric coating, the polymeric coating comprising a thermoset, thermoplastic or UV cured elastomer having a Poisson'"'"'s Ratio of between about 0.350 and about 0.4995, and a shear modulus of between about 20 psi and about 2900 psi;
a light source;
a detector; and
a signal processor.
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Abstract
Coated optical fibers and uses of such fibers as sensors in high temperature and/or high pressure environments. The coated optical fiber has improved sensing properties at elevated pressure and/or temperature, such as enhanced acoustic sensitivity and/or a reduced loss in acoustic sensitivity. The use of the coated optical fibers in various sensing applications that require operation under elevated pressure and/or temperature, such as, acoustic sensors for various geological, security, military, aerospace, marine, and oil and gas applications are also provided.
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Citations
20 Claims
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1. A sensor system comprising:
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a coated optical fiber, wherein the coated optical fiber comprises an optical fiber having a polymeric coating, the polymeric coating comprising a thermoset, thermoplastic or UV cured elastomer having a Poisson'"'"'s Ratio of between about 0.350 and about 0.4995, and a shear modulus of between about 20 psi and about 2900 psi; a light source; a detector; and a signal processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of producing a coated optical fiber having an increased Sensitivity Scale Factor of between about 5 dB and about 60 dB over bare fiber, the method comprising coating an optical fiber with a thermoset, thermoplastic or UV cured elastomer, the elastomer having a Poisson'"'"'s Ratio of between about 0.350 and about 0.4995, and a shear modulus of between about 20 psi and about 2900 psi.
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18. A system for detecting acoustic changes in a channel, the system comprising:
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at least one coated optical fiber; an interrogator optically coupled to the coated optical fiber; and a signal processing device in communication with the interrogator, wherein the coated optical fiber comprises an optical fiber having a polymeric coating, the polymeric coating comprising a thermoset, thermoplastic or UV cured elastomer having a Poisson'"'"'s Ratio of between about 0.350 and about 0.4995, and a shear modulus of between about 20 psi and about 2900 psi. - View Dependent Claims (19, 20)
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Specification