Beat spectrum in dual-laser optical correlation-domain reflectometry
Dual-laser Brillouin optical correlation-domain reflectometry down-converts Brillouin signals to lower frequencies, eliminating the need for lengthy delay lines. In this work, we derive a theoretical formula for the dual-laser beat spectrum, which governs spatial resolution, and verify its validity through experiments.
Authors
- Shinji Yamashita (ORCID: https://orcid.org/0000-0001-5859-2828)
- Takaki Kiyozumi (ORCID: https://orcid.org/0000-0002-8109-4824)
- K. Motoda
- Kohei Noda (ORCID: https://orcid.org/0000-0003-4976-9657)
- Sze Yun Set (ORCID: https://orcid.org/0000-0002-0593-3243)
- Yosuke Mizuno (ORCID: https://orcid.org/0000-0002-3362-4720)
Institutions
- Yokohama National University (JP)
- The University of Tokyo (JP)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3062605
- Primary Topic
- Advanced Fiber Optic Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00