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Proceedings Paper

Acoustic fiber sensor arrays
Author(s): Michel J. F. Digonnet; Benjamin J. Vakoc; Craig W. Hodgson; Gordon S. Kino
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Paper 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.

Paper Details

Date Published: 9 June 2004
PDF: 12 pages
Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); doi: 10.1117/12.566514
Show Author Affiliations
Michel J. F. Digonnet, Stanford Univ. (United States)
Benjamin J. Vakoc, Stanford Univ. (United States)
Craig W. Hodgson, Stanford Univ. (United States)
Gordon S. Kino, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 5502:
Second European Workshop on Optical Fibre Sensors
Jose Miguel Lopez-Higuera; Brian Culshaw, Editor(s)

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