9 June 2004 Acoustic fiber sensor arrays
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Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004); doi: 10.1117/12.566514
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain
Abstract
The acoustic fiber sensor arrays that have been developed over the past two decades for oil exploration and other applications can support hundreds of fiber hydrophones per fiber pair and exhibit exceptional properties, including shot-noise-limited sensitivities better than 1 μrad/√Hz, high stability, and dynamic ranges well in excess of 130 dB. This article reviews the main configurations reported to date, which are based on ladder architectures utilizing either Mach-Zehnder or Sagnac interferometric sensors and time-domain multiplexing. The emphasis is placed on their principles, performance characteristics, and relative advantages regarding such key issues as signal fading, polarization-induced fading, frequency response, sensitivity, and the number of sensors that can be multiplexed on a given pair of fibers.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michel J. F. Digonnet, Benjamin J. Vakoc, Craig W. Hodgson, Gordon S. Kino, "Acoustic fiber sensor arrays", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); doi: 10.1117/12.566514; https://doi.org/10.1117/12.566514
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KEYWORDS
Sensors

Acoustics

Signal detection

Amplifiers

Fiber optics sensors

Multiplexing

Polarization

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