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Proceedings Paper

Frequency response comparison of two FBG-based hydrophones
Author(s): Indu Fiesler Saxena; Narciso Guzman; Stephen Pflanze
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Paper Abstract

Fiber optic hydrophones are useful for a variety of underwater monitoring applications, as they offer high sensitivity, signal-to-noise ratio and multiplexing ability for marine acoustics and offer longer term reliability than conventional electronic hydrophones. The frequency response of packaged fibers depends strongly on the material and mechanical parameters of the sensor design. Two fiber bragg-grating (FBG)-based hydrophones are described and their frequency response is measured. One consists of a diaphragm-linked FBG, and another is a polymer coated FBG. While the diaphragm-linked FBG has predictable resonances, resonance features on the simpler coated FBG hydrophone are observed as well.

Paper Details

Date Published: 16 May 2012
PDF: 6 pages
Proc. SPIE 8368, Photonic Applications for Aerospace, Transportation, and Harsh Environment III, 83680A (16 May 2012); doi: 10.1117/12.923344
Show Author Affiliations
Indu Fiesler Saxena, Paulsson, Inc. (United States)
Narciso Guzman, Intelligent Optical Systems, Inc. (United States)
Stephen Pflanze, Intelligent Optical Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 8368:
Photonic Applications for Aerospace, Transportation, and Harsh Environment III
Alex A. Kazemi; Nicolas Javahiraly; Allen S. Panahi; Simon Thibault, Editor(s)

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