12 June 2000 Optical fiber grating sensors in multimode fibers
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We present a novel class of optical fiber sensors based on fiber Bragg gratings written in germanium-doped silica multimode fibers that can be implemented with inexpensive components. The gratings are inscribed by the phase mask technique in 50/125 μm step-index profile fibers and their temperature and strain responses are investigated.
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Wei Zhao, Richard O. Claus, "Optical fiber grating sensors in multimode fibers", Proc. SPIE 3986, Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (12 June 2000); doi: 10.1117/12.388144; https://doi.org/10.1117/12.388144

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