True Phase Measurement of Distributed Vibration Sensors Based on Heterodyne $\varphi $-OTDR
We demonstrate a method to truly measure the phase change originated from external vibration by heterodyne phase-sensitive optical time-domain reflectometer (<inline-formula><tex-math notation="LaTeX">$\varphi $</tex-math> </inline-formula>-OTDR). The method of diff...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8249791/ |
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