Performance Comparison of Direct and Coherent Detection in Correlation-Based Distributed Fiber-Optic Acoustic Sensing
In a chirped-pulse-based distributed acoustic sensor, we show that exploiting both the amplitude and phase of the fiber fingerprint enables more than a 2-fold reduction in the noise floor, achieving <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$< 5n\epsilon$</tex> strain noise in a 32 km link. ©2025 The Author(s)
Authors
- Ruben S. Lúıs (ORCID: https://orcid.org/0000-0002-1002-882X)
- Thomas D. Bradley (ORCID: https://orcid.org/0000-0001-6568-5811)
- Pierpaolo Boffi (ORCID: https://orcid.org/0000-0002-7480-9772)
- Chigo Okonkwo (ORCID: https://orcid.org/0000-0002-5716-6728)
- Luca Palmieri (ORCID: https://orcid.org/0000-0001-7187-570X)
- Andrea Galtarossa (ORCID: https://orcid.org/0000-0002-6713-6370)
- Daniele Orsuti (ORCID: https://orcid.org/0000-0002-5526-0358)
- Besma Kalla
- Jun Sakaguchi (ORCID: https://orcid.org/0000-0003-1955-6239)
- Martina Cappelletti (ORCID: https://orcid.org/0009-0000-2016-3630)
- Stefano Gaiani
- Marco Santagiustina
- Hideaki Furukawa
Institutions
- University of Padua (IT)
- Photonic Systems (United States) (US)
- Eindhoven University of Technology (NL)
- Politecnico di Milano (IT)
Publication Details
- Published
- 2025-09-28
- DOI
- https://doi.org/10.1109/ecoc66593.2025.11263219
- Primary Topic
- Advanced Fiber Optic Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00