• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.36 no.1
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• pp.57-61
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• 2008

A tensile-strain measurement method is proposed based on Depolarized Guided Acoustic-wave Brillouin Scattering (DGAWBS). The effect of tensile-strain applied to an optical fiber is investigated experimentally, observing that the resonance spectrum increases the measurement accuracy of DGAWBS at the TR25 mode. This paper presents a simple structure as tensile-strain sensor using two analyzers after sensing fiber.