Bend induced spectral changes in fibre Bragg gratings and their applications for simultaneous measurement


A report is presented on the interesting bending effect of cladding mode resonances in fibre Bragg gratings (FBGs). It is observed that a serial of new cladding mode resonances can arise under bending and the new and the original cladding mode resonances have opposite trends in amplitude change and wavelength shift when the curvature varies. The discovery provides an effective new way to discriminate between bend and strain or bend and temperature when using only a single uniform FBG.

Divisions: College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering
Publication ISSN: 0013-5194
Last Modified: 23 Oct 2019 12:43
Date Deposited: 16 Jan 2013 15:05
Published Date: 2011-06-09
Authors: Shu, Xuewen
Sugden, Kate
Bennion, Ian


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