Sensors pp 343-347 | Cite as

Engineered Acoustic Sensors for Underwater Applications Based on Coated Fiber Bragg Gratings

  • M. Moccia
  • M. Pisco
  • M. Consales
  • A. Iadicicco
  • A. Cutolo
  • V. Galdi
  • A. Cusano
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 162)

Abstract

In this work, we report on experimental results obtained with hydrophones based on fiber-Bragg-grating (FBG) for underwater acoustic detection in the frequency range 4–35kHz. The investigated optical hydrophones consist of FBG sensors coated with cylindrically-shaped coatings with different diameters and materials. Coating materials have been selected through an appropriate choice of their acousto-mechanical properties to provide mechanical amplification of sound pressure in specific frequency ranges. Experimental results demonstrated the expected resonant behavior of such devices (recently demonstrated via numerical simulations but not yet validated experimentally) and their excellent capability to detect acoustic waves in the investigated frequency range.

Keywords

Hydrophone 

References

  1. 1.
    Moccia M, Pisco M, Cutolo A, Galdi V, Bevilacqua P, Cusano A (2011) Resonant behavior of coated Fiber Bragg Gratings as underwater acoustic sensors. Opt Express 19:18842–18860CrossRefGoogle Scholar
  2. 2.
    Moccia M, Pisco M, Cutolo A, Galdi V, Cusano A (2011) Resonant hydrophones based on coated Fiber Bragg Gratings. Part I: numerical analysis. Proc SPIE 7753. doi:775384-1-775384-4Google Scholar
  3. 3.
    Moccia M, Consales M, Iadicicco A, Pisco M, Cutolo A, Cusano A (2011) Resonant hydrophones based on coated Fiber Bragg Gratings. Part II: experimental analysis. Proc SPIE 7753. doi:775383/1-775383/4Google Scholar
  4. 4.
    Moccia M, Consales M, Iadicicco A, Pisco M, Cutolo A, Galdi V, Cusano A (2012) Resonant hydrophones based on coated Fiber Bragg Gratings. J Lightwave Technol 30(15):2472–2481. doi: 10.1109/JLT.2012.2200233 Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • M. Moccia
    • 1
  • M. Pisco
    • 1
  • M. Consales
    • 1
  • A. Iadicicco
    • 2
  • A. Cutolo
    • 1
  • V. Galdi
    • 3
  • A. Cusano
    • 1
  1. 1.Optoelectronic Division – Engineering DepartmentUniversity of SannioBeneventoItaly
  2. 2.Department of TechnologyUniversity of Naples “Parthenope”NaplesItaly
  3. 3.Waves Group, Department of EngineeringUniversity of SannioBeneventoItaly

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