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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 13 — May. 1, 2007
  • pp: 2516–2519

Low-cost high-sensitivity strain and temperature sensing using graded-index multimode fibers

Yu Liu and Li Wei  »View Author Affiliations

Applied Optics, Vol. 46, Issue 13, pp. 2516-2519 (2007)

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We report a low-loss, low-cost high-sensitivity all-fiber strain and temperature sensor based on mode interference in graded-index multimode fibers. Blueshifts with strain and temperature sensitivities of 18.6 pm∕microstrain and 58.5 pm / ° C have been observed. Experimental results show that smaller core diameter graded-index fibers display greater strain-induced peak wavelength shifts than larger core diameter fibers.

© 2007 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 22, 2006
Revised Manuscript: December 18, 2006
Manuscript Accepted: December 19, 2006
Published: April 9, 2007

Yu Liu and Li Wei, "Low-cost high-sensitivity strain and temperature sensing using graded-index multimode fibers," Appl. Opt. 46, 2516-2519 (2007)

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  1. J. Yuan and M. A. El-Sherif, "Fiber-optic chemical sensor using polyaniline as modified cladding material," IEEE Sens. J. 3, 5-12 (2003). [CrossRef]
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