A comparison of the sensing characteristics of long period gratings written in three different types of fiber

Allsop, Thomas D.P.; Webb, David J. and Bennion, Ian (2003). A comparison of the sensing characteristics of long period gratings written in three different types of fiber. Optical fiber technology, 9 (4), pp. 210-223.

Abstract

This paper compares the environmental sensing behaviour of long period gratings written in three fibers with different refractive index profiles: step, W and a progressive three layered fiber. The measurands considered are temperature, refractive index, axial strain and bending, and the spectral behaviour of individual attenuation bands were observed and, where possible, compared to theoretical predictions. Significant differences in the behaviour of the three fiber types were found.

Uncontrolled Keywords: environmental sensing behaviour, long period gratings, temperature, refractive index, axial strain, bending, spectral behaviour, attenuation bands
Published Date: 2003-10

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