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Method for Measuring Optical Fiber Strain Applied to Determine Strain in Fusion Splice Protectors

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2 Author(s)
Veng, T. ; OFS Fitel Denmark ApS, Brøndby, Denmark ; Edvold, B.

A method to measure strain in optical fibers using modal interference is proposed. The method is used to investigate fiber stress when the fiber is covered by a heat shrink sleeve, a so-called splice protector commonly used to protect fusion splices. The results are compared with a model based on the thermal expansion properties of a standard heat shrink sleeve. It is shown that for temperature ranges normally used for optical fiber components, the spliced fiber will be under compression when covered by the protector.

Published in:

Photonics Technology Letters, IEEE  (Volume:25 ,  Issue: 15 )