Random Phase Modulated $\varphi$-OTDR for Simultaneous Loss and Vibration Monitoring
We experimentally demonstrated a novel <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\varphi$</tex>-OTDR system with the ability to measure loss and vibration simultaneously. The loss measurement accuracy is 0.07 dB and fading-free phase demodulation is realized in a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$50-\text{km}$</tex> long fiber span.
Authors
- Can Hui Zhao (ORCID: https://orcid.org/0000-0002-6939-359X)
- Ming Tang (ORCID: https://orcid.org/0000-0001-8669-4186)
- Tao Shang (ORCID: https://orcid.org/0000-0002-8647-6127)
- Jingchi Cheng (ORCID: https://orcid.org/0000-0002-7317-6870)
- Jing Jiang (ORCID: https://orcid.org/0000-0002-4580-4761)
Institutions
- Xidian University (CN)
- Wuhan National Laboratory for Optoelectronics (CN)
Publication Details
- Published
- 2025-06-29
- DOI
- https://doi.org/10.23919/oecc/psc62146.2025.11110242
- Citations
- 1
- Primary Topic
- Advanced Fiber Optic Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Natural Science Foundation of China