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Proceedings Article

Erbium-doped fiber ring laser strain sensor

[+] Author Affiliations
Alan D. Kersey, E. J. Friebele, R. Stephen Weis

Naval Research Lab. (USA)

Proc. SPIE 1798, Fiber Optic Smart Structures and Skins V, 280 (March 26, 1993); doi:10.1117/12.141329
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From Conference Volume 1798

  • Fiber Optic Smart Structures and Skins V
  • Richard O. Claus; Robert S. Rogowski
  • Boston, MA | September 08, 1992

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.

© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Topics

Erbium ; Lasers ; Sensors
Citation

Alan D. Kersey ; E. J. Friebele and R. Stephen Weis
"Erbium-doped fiber ring laser strain sensor", Proc. SPIE 1798, Fiber Optic Smart Structures and Skins V, 280 (March 26, 1993); doi:10.1117/12.141329; http://dx.doi.org/10.1117/12.141329


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