Affordable Access

Publisher Website

Underwater Acoustic Sensors Based on Fiber Bragg Gratings

Authors
Journal
Sensors
1424-8220
Publisher
MDPI AG
Publication Date
Volume
9
Issue
6
Identifiers
DOI: 10.3390/s90604446
Keywords
  • Article
Disciplines
  • Mathematics

Abstract

We report on recent results obtained with a fiber optic hydrophone based on the intensity modulation of the laser light in a FBG (Fiber Bragg Grating) under the influence of the sound pressure. In order to control the behavior of the hydrophone in terms of sensitivity and bandwidth, FBGs have been coated with proper materials, characterized by different elastic modulus and shapes. In particular, new experiments have been carried out using a cylindrical geometry with two different coating, showing that the sensitivity is not influenced by the shape but by the transversal dimension and the material characteristics of the coating.

There are no comments yet on this publication. Be the first to share your thoughts.