Embedded Modal Domain Sensors Using Elliptical Core Optical Fibers

K. A. Murphy; M. S. Miller; A. M. Vengsarkar; R. O. Claus; N. E. Lewis

doi:10.1117/12.963133

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5 February 1990 Embedded Modal Domain Sensors Using Elliptical Core Optical Fibers

K. A. Murphy, M. S. Miller, A. M. Vengsarkar, R. O. Claus, N. E. Lewis

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Proceedings Volume 1170, Fiber Optic Smart Structures and Skins II; (1990) https://doi.org/10.1117/12.963133
Event: OE/FIBERS '89, 1989, Boston, United States

Abstract

Few-mode, elliptical core fibers embedded in graphite-epoxy composites have been shown to detect the strain and vibration effects on the host material. A theoretical description of the sensor operation is presented and the insensitivity of the lead-in and lead-out fibers to strain is investigated. A scheme using a single-mode elliptical-core fiber as the lead-in fiber and an offset circular core single mode fiber as the lead-out fiber is successfully implemented. The effect on the sensitivity of the system, when the fibers are embedded between different layers of the laminate, is evaluated.

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K. A. Murphy, M. S. Miller, A. M. Vengsarkar, R. O. Claus, and N. E. Lewis "Embedded Modal Domain Sensors Using Elliptical Core Optical Fibers", Proc. SPIE 1170, Fiber Optic Smart Structures and Skins II, (5 February 1990); https://doi.org/10.1117/12.963133

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