Optical waveguides – Optical waveguide sensor – Including physical deformation or movement of waveguide
Patent
1991-09-19
1993-04-06
Gonzalez, Frank
Optical waveguides
Optical waveguide sensor
Including physical deformation or movement of waveguide
356345, G02B 602
Patent
active
052010155
ABSTRACT:
A length of optical fiber is attached to a flexible base plate at two spaced apart locations. The portion of the fiber between the two points of connection is under a bias tension. An interferometer is formed in the tensioned portion of the optical fiber. The sensor is mounted to a surface and changes in interference patterns output by the interferometer are monitored to measure strain in the surface.
REFERENCES:
patent: 4294513 (1981-10-01), Nelson et al.
patent: 4368981 (1983-01-01), Ozeki
patent: 4418981 (1983-12-01), Stowe
patent: 4525818 (1985-06-01), Cielo et al.
patent: 4545253 (1985-10-01), Avicola
patent: 4632551 (1986-12-01), Pavlath
patent: 4648083 (1987-03-01), Giallorenzi
patent: 4725124 (1988-02-01), Taylor
patent: 4848906 (1989-07-01), Layton
patent: 4904863 (1990-02-01), McDearmon
patent: 4915468 (1990-04-01), Kim et al.
patent: 5064270 (1991-11-01), Turpin et al.
Blake et al., Optics Letters, vol. 11, No. 3, Mar. 1986, "Fiber-optic modal coupler using periodic microbending", pp. 177-179.
Dandridge et al., "Phase Compensation in Interferometric Fiber-optic Sensors", Optics Letters, Jun. 1982, vol. 7, No. 6, pp. 279-281.
Duncan, "Modal Domain Sensing," Modal Interference Techniques for Strain Detection in Few-Mode Optical Fibers, Master in Science in EE Thesis, Apr. 1988, Blacksburg, Va. pp. 34-70.
Goedgebuer et al., "Multiplex Communication Via Electro-Optic Modulation of White Light," Optica Acta, 1982, vol. 29, No. 4, 471-477.
Goedgebuer et al., "Electrooptic Modulation of Multilongitudinal Mode Laser Diodes: Demonstration at 850 nm with Simultaneous Data Transmission by Coherence Multiplexing," IEEE J. Quantum Electron., Jul. 1987, vol. QE-23, No. 7, pp. 1135-1144.
Goedgebuer et al., "Coherence Multiplexing Using a Parallel Array of Electrooptic Modulators and Multimode Semiconductor Lasers," IEEE J. Quantum Electron., Jul. 1987, vol. QE-23, No. 12, pp. 2224-2237.
Huang et al., "Perturbation Effects on Mode Propagation in Highly Elliptical Core Two-Mode Fibers," Journal of Lightwave Technology, vol. 8, No. 1, Jan. 1990.
Kersey et al., "Phase Noise Reduction in Coherence Multiplexed Interferometric Fiber Sensors," Electronics Letters, May 22, 1986, vol. 22, No. 11.
Kim et al., "Use of Highly Elliptical Core Fibers for Two-mode Fiber Devices," Optics Letters, Sep. 1987, vol. 12, p. 729.
Kim et al., "Multiplexing of Fiber-optic Sensors," Optics News, Nov. 1989, pp. 35-42.
Wentworth et al., "Expected Noise Levels for Interferometric Sensors Multiplexed Using Partially Coherent Light," SPIE, 1985, vol. 566, Fiber Optic and Laser Sensors III, pp. 212-217.
Wood, "Increased Power Injection in Multimode Optical-Fiber Buses Through Mode-Selective Coupling," Journal of Lightwave Technology, vol. LT-3, No. 3, Jun., 1985.
Arabsadeghabadi Akbar
Skochinski Phillip
von Bieren Karlheinz
Gonzalez Frank
Litton Systems Inc.
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