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Proceedings Paper

Modeling of active fiber Bragg grating underwater acoustic sensor
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Paper Abstract

A novel design of an underwater acoustical pressure transducer based on a Fiber Bragg Grating is presented. In this transducer the sensing grating is writen in a rare-earth doped fiber and operates as an optically pumped Distributed Feedback (DFB) laser. Presented sensor has higher resolution, compared to a sensor using a passive Fiber Bragg Grating. A profiled membrane is used in the transducer to achieve equalization of stress acting on the grating along its length. Results of Finite Element modeling of the transducer are presented.

Paper Details

Date Published: 8 September 2004
PDF: 7 pages
Proc. SPIE 5576, Lightguides and their Applications II, (8 September 2004); doi: 10.1117/12.581844
Show Author Affiliations
Pawel Wierzba, Gdansk Univ. of Technology (Poland)
Pentti Karioja, VTT Technical Research Ctr. of Finland (Finland)

Published in SPIE Proceedings Vol. 5576:
Lightguides and their Applications II
Jan Wojcik; Waldemar Wojcik, Editor(s)

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