Modeling of active fiber Bragg grating underwater acoustic sensor

Pawel Wierzba; Pentti Karioja

doi:10.1117/12.581844

8 September 2004 Modeling of active fiber Bragg grating underwater acoustic sensor

Pawel Wierzba, Pentti Karioja

Proceedings Volume 5576, Lightguides and their Applications II; (2004) https://doi.org/10.1117/12.581844
Event: Lightguides and their Applications II, 2003, Krasnobrod, Poland

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.

Citation Download Citation

Pawel Wierzba and Pentti Karioja "Modeling of active fiber Bragg grating underwater acoustic sensor", Proc. SPIE 5576, Lightguides and their Applications II, (8 September 2004); https://doi.org/10.1117/12.581844

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