Two-axis bend measurement with Bragg gratings in multicore optical fiber

G M H Flockhart, W N MacPherson, J S Barton, J D C Jones, L Zhang, I Bennion

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We describe what is to our knowledge the first use of fiber Bragg gratings written into three separate cores of a multicore fiber for two-axis curvature measurement. The gratings act as independent, but isothermal, fiber strain gauges for which local curvature determines the difference in strain between cores, permitting temperature-independent bend measurement. (C) 2003 Optical Society of America.

Original languageEnglish
Pages (from-to)387-389
Number of pages3
JournalOptics Letters
Issue number6
Publication statusPublished - 15 Mar 2003

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