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Proceedings Paper

Erbium-doped fiber ring laser strain sensor
Author(s): Alan D. Kersey; E. Joseph Friebele; R. Stephen Weis
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Paper Abstract

We describe a fiber ring strain sensor configuration which incorporates an active fiber gain section to allow lasing within the ring. Analysis of the beating between modes of this ring laser provides a measure of the optical path length in the ring, and thus strain applied to the fiber. The sensor provides an output frequency which can be tracked to determine the integrated strain over the length of the fiber ring. Results are presented showing the sensor response up to a fiber strain of approximately 4000 micro-strain.

Paper Details

Date Published: 26 March 1993
PDF: 6 pages
Proc. SPIE 1798, Fiber Optic Smart Structures and Skins V, (26 March 1993); doi: 10.1117/12.141329
Show Author Affiliations
Alan D. Kersey, Naval Research Lab. (United States)
E. Joseph Friebele, Naval Research Lab. (United States)
R. Stephen Weis, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 1798:
Fiber Optic Smart Structures and Skins V
Richard O. Claus; Robert S. Rogowski, Editor(s)

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