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Conferences > OFC > 2023 > W3J > W3J.1

Frequency averaging with rotation angle tracking technique in phase-OTDR DAS for large-scale vibration measurement

Yoshifumi Wakisaka, Hiroshi Takahashi, Daisuke Iida, Takahiro Ishimaru, and Yusuke Koshikiya

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Abstract

Sensitivity degradation specific to frequency-multiplexed phase OTDR in measuring large strain change is clarified for the first time. We demonstrate one solution based on frequency averaging with rotation angle tracking technique to measure sub-εµ vibrations.

© 2023 The Author(s)

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