• Title/Summary/Keyword: Optical fiber measurement

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Optical Tensile-Strain Sensor using Depolarized Guided Acoustic-Wave Brillouin Scattering (간단한 구조를 갖는 Depolarized-GAWB산란을 이용한 광섬유 변형율 센서)

  • Kim, Bu-Dong
    • 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.