Distributed strain measurements using fiber Bragg gratings in small-diameter optical fiber and low-coherence reflectometry

Optical low coherence reflectometry and fiber Bragg gratings written in small diameter (50 micrometer) optical fibers were used for measurements of non-homogenous internal strain fields inside an epoxy specimen with sub-grating length resolution. The results were compared with measurements using Fiber Bragg gratings in standard size (125 micrometer) single mode fibers and show that smaller fibers are less intrusive at stress heterogeneities. (C) 2010 Optical Society of America


Published in:
Optics Express, 18, 25, 26484-26491
Year:
2010
Publisher:
Optical Society of America
ISSN:
1094-4087
Keywords:
Laboratories:




 Record created 2010-12-15, last modified 2018-03-18


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