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Proceedings Paper

Differential strain sensitivity of higher order cladding modes in weakly tilted fiber Bragg gratings
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Paper Abstract

In this paper, we present the differential strain sensitivity characteristics of core and cladding modes in weakly TFBG. Both experiment and analysis results are presented, and they are well matched. The results show that there are three different strain sensitivity regions for cladding mode resonances: the short wavelength region, the ghost mode region and the nearly linear sensitivity change region between them. By monitoring the cladding modes with different strain sensitivities, and noting that the different cladding modes have similar temperature sensitivities, weakly TFBG are attractive candidates for more accurate temperature-independent strain sensors.

Paper Details

Date Published: 10 October 2006
PDF: 7 pages
Proc. SPIE 6379, Photonic Applications for Aerospace, Transportation, and Harsh Environments, 63790E (10 October 2006); doi: 10.1117/12.686314
Show Author Affiliations
Chengkun Chen, Carleton Univ. (Canada)
Lingyun Xiong, Carleton Univ. (Canada)
Christophe Caucheteur, Faculté Polytechnique de Mons (Belgium)
Patrice Mégret, Faculté Polytechnique de Mons (Belgium)
Jacques Albert, Carleton Univ. (Canada)


Published in SPIE Proceedings Vol. 6379:
Photonic Applications for Aerospace, Transportation, and Harsh Environments
Christopher S. Baldwin; Anbo Wang; Alex A. Kazemi, Editor(s)

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